Opinion for the Court filed by Circuit Judge RANDOLPH.
Dissenting Opinion by Circuit Judge TATEL.
The main issue in this appeal from a conviction, after a jury trial, is whether the sentence imposed on the defendant, Peter R. Turner, violated the Ex Post Facto Clause of the Constitution. U.S. Const. art. I, § 9. Turner also raises the question whether the prosecution established his guilt beyond a reasonable doubt. The evidence, viewed in favor of the verdict, shows that there was sufficient evidence to support his conviction.
In 1998, while serving as a volunteer driver for the Department of Veterans Affairs Medical Center, Turner struck up a romantic relationship with Vester Mayo, a nurse at the Medical Center. Vester died in December 2000. She had taken out a life insurance policy through a federally-administered program. Her beneficiary designation form, contained in her personnel file, listed Turner and her mother, Lorenza Mayo, as co-beneficiaries. In January 2001, Turner filed a claim for his share of the life insurance benefits and later received a money market account valued at $20,562.90.
In preparing her claim, Lorenza examined her daughter’s papers and concluded that Vester’s beneficiary designation form contained forgeries. The dates on the form were inconsistent, Lorenza’s name and address were misspelled, and Vester’s social security number was incorrect. Lorenza reported this to federal authorities.
The ensuing investigation revealed that shortly after obtaining his life insurance payout, Turner wrote a $1,000 check from the proceeds to his friend, LaTanya Andrews. Andrews was a payroll technician at the Medical Center. She had worked in the human resources section, which housed employees’ personnel files and was located in the same area as the payroll section. A government agent interviewed her in No*409vember 2005. At first Andrews said she never received more than $10 from Turner. When the agent showed her the $1,000 check, she claimed that Turner wrote the check to prove to a car dealership that she had a checking account. When the agent told her this made no sense, Andrews said she borrowed the money from Turner to purchase a car and repaid him sometime before March 2001. Agents found nothing in Andrews’s bank records to support her claim.
The grand jury charged Turner and Andrews with conspiracy to defraud the United States, in violation of 18 U.S.C. § 871, and bribery, in violation of 18 U.S.C. § 201(b). Evidence a reasonable jury could credit showed that Vester’s signature on the beneficiary form had been forged, that Andrews had easy access to Yester’s personnel file containing the beneficiary form, and that Lorenza saw Turner forge her daughter’s signature on two checks. The jury convicted both defendants on both counts. On Andrews’s separate appeal, we affirmed her conviction. United States v. Andrews, 532 F.3d 900 (D.C.Cir.2008). We now affirm Turner’s.
A sentencing court, applying the Sentencing Guidelines, must “use the Guidelines Manual in effect on the date that the defendant is sentenced” unless the court determines that this would violate the Ex Post Facto Clause of the Constitution, U.S. Const, art. I, § 9, in which case the court “shall use the Guidelines Manual in effect on the date that the offense of conviction was committed.” U.S. Sentencing Guidelines Manual § 1B1.11. The Ex Post Facto Clause bars the retroactive application of “enactments which ... increase the punishment for a crime after its commission.” Garner v. Jones, 529 U.S. 244, 249, 120 S.Ct. 1362, 146 L.Ed.2d 236 (2000). When Turner received his share of the proceeds of Vester Mayo’s life insurance policy in 2001, the Guidelines set the base offense level for conspiracy to defraud the United States at 10. A 2004 amendment to the Guidelines increased the base offense level for his crime to 14.1 This was the base level in the 2006 Guidelines the district court used when sentencing Turner in September 2007 to 33 months’ imprisonment. As Turner sees it, the district court violated the Ex Post Facto Clause by applying the later edition of the Guidelines and thereby increasing his Guideline range from 21-27 months to 33-41 months. Unlike his co-defendant Andrews, see Andrews, 532 F.3d at 908, Turner preserved this issue by making a proper objection at sentencing.
The government counters that the conspiracy continued through 2005 when Andrews lied to the investigators in order to conceal her role and Turner’s role in the fraud. Because the base offense level for Turner’s conspiracy when he committed the offense (through 2005) was the same as the Guideline base offense level when he was sentenced (2007), the government says there is no ex post facto problem.
Turner’s argument and the government’s answer require us to determine the duration of the conspiracy between him and Andrews. Typically, questions about when a conspiracy ended arise in cases in which the defendant raises a statute of limitations defense, as in Grunewald v. United States, 353 U.S. 391, 77 S.Ct. 963, 1 L.Ed.2d 931 (1957), or in which the defen*410dant objects that a coconspirator’s statement was hearsay because it was not made in furtherance of an ongoing conspiracy, as in Krulewitch v. United States, 336 U.S. 440, 69 S.Ct. 716, 93 L.Ed. 790 (1949), and Lutwak v. United States, 344 U.S. 604, 73 S.Ct. 481, 97 L.Ed. 593 (1953). Even though we must determine the duration of a conspiracy in a different context — sentencing — cases such as those just cited are controlling.
The government says that the conspiracy continued through 2005 because the indictment alleged that one object of the conspiracy was “to conceal the conspiracy itself and the acts committed in furtherance thereof.” The government’s idea is that “the language of the indictment is controlling.” Gov’t Br. at 30. If this is supposed to mean that one need look only at the indictment to determine the duration of the conspiracy, the government is quite mistaken. The indictment in Lutwak, 344 U.S. at 617, 73 S.Ct. 481, charged a conspiracy to transport a woman across state lines for the purpose of prostitution, and — like the indictment in this case— alleged concealment of the crime as part of the conspiracy. Yet the Supreme Court held that the conspiracy did not continue after the transportation occurred. The indictment in Grunewald charged that “one of the terms of the illegal agreement was that continuing efforts would be made ‘to avoid detection and prosecution by any governmental body.’ ” United States v. Grunewald, 233 F.2d 556, 565 (2d Cir.1956). Yet the Supreme Court held that the conspirators’ acts of concealment after the central object of the conspiracy had been accomplished did not extend the life of the conspiracy. Grunewald, 353 U.S. at 414, 77 S.Ct. 963; see Forman v. United States, 361 U.S. 416, 423-24, 80 S.Ct. 481, 4 L.Ed.2d 412 (1960), overruled on other grounds by Burks v. United States, 437 U.S. 1, 98 S.Ct. 2141, 57 L.Ed.2d 1 (1978). The portion of this court’s opinion in United States v. Hitt, 249 F.3d 1010, 1015-16 (D.C.Cir.2001), upon which the government relies, simply strings together citations and quotations from the cases. It does not, indeed could not, disagree with Grünewald or Lutwak.
But the government says it proved a conspiracy continuing after 2001, the year Turner reaped the results of his fraud and paid Andrews $1,000 for her help. The government’s evidence consisted of Andrews’s lying to investigators in 2005. Was this part of the conspiracy or had the conspiracy ended by then? The indictment did not allege, and the government did not prove, any express agreement between Turner and Andrews to conceal their offense after they had pocketed the proceeds. Yet one might reason that because a conspiracy cannot function except in secrecy, an agreement to avoid detection was implicit. The theory is plausible, but in Krulewiteh and again in Lutwak and once again in Grünewald the Supreme Court rejected the theory “that in every conspiracy there is implicit an agreement as a part thereof for the conspirators to collaborate to conceal the conspiracy.” Lutwak, 344 U.S. at 616, 73 S.Ct. 481. The government’s position here is identical to the position it took in Grünewald: “a conspiracy to conceal is being implied from elements which will be present in virtually every conspiracy case, that is, secrecy plus overt acts of concealment.” 353 U.S. at 404, 77 S.Ct. 963. If this were enough to keep the conspiracy alive after accomplishment of its central objects, the statute of limitations would never run until the conspirators’ death, conviction, or confession. “Sanctioning the government’s theory,” the Court held in Grunewald, 353 U.S. at 402, 77 S.Ct. 963, “would for all practical purposes wipe out the statute of limitations in conspiracy cases, as well as extend *411indefinitely the time within which hearsay declarations will bind co-conspirators.”
Nothing we have written thus far is inconsistent with Forman, 361 U.S. at 423-24, 80 S.Ct. 481. The main charge in Forman was a conspiracy to evade income taxes. The Court seemed to agree — the opinion is a bit opaque on this point — that a “subsidiary conspiracy” to conceal the conspiracy would not extend the conspiracy’s life. But the court added that the “essence of the conspiracy” to evade taxes was concealing income and to be successful the concealing had to continue until the statute of limitations ran. Id. at 420, 424, 80 S.Ct. 481. Thus, a jury could have found that the conspiracy in Forman continued even after the tax returns were filed, but it could not base this finding on some subsidiary conspiracy to conceal the main conspiracy.2 We admit that the For-man line is a bit elusive. Grünewald itself is not all that clear. The Court in Grünewald hinted — but did not hold — that the conspiracy there might have been extended if, rather than an implied agreement, there had been “an express original agreement among the conspirators to continue to act in concert in order to cover up, for their own self-protection, traces of the crime after its commission.” 353 U.S. at 404, 77 S.Ct. 963; see Pyramid Secs. Ltd. v. IB Resolution, Inc., 924 F.2d 1114, 1118 (D.C.Cir.1991). The distinction between an “express” agreement to conceal and one that is inferred is not so easily justified— both would have the effect of indefinitely extending the limitations period and, as the Court recognized, such a subsidiary agreement is implicit, if not explicit, in every conspiracy. See Grunewald, 353 U.S. at 403-04, 77 S.Ct. 963; Lutwak, 344 U.S. at 616, 73 S.Ct. 481; Krulewitch, 336 U.S. at 444, 69 S.Ct. 716.
However murky the distinction just mentioned, it is one that is of no consequence in this case. As we have discussed, the only possible way to find an agreement between Turner and Andrews to conceal their conspiracy is to infer its existence from Andrews’s encounter with the agents in 2005. That puts the case squarely within the Krulewitch-Lutwak-Grwiewald pattern and leads to the conclusion that the conspiracy did not continue after 2001. We therefore disagree with the district court’s ruling that the conspiracy continued through January 2006.
This brings us to the question whether sentencing Turner under the newer Guidelines violated the Ex Post Facto Clause. The Guidelines in effect in 2001 yielded a sentencing range for Turner of 21 to 27 months’ imprisonment. Under the later Guidelines the district court came up with a sentencing range of 33 to 41 months. These disparities render Turner’s case analogous to Miller v. Florida, 482 U.S. 423, 424, 107 S.Ct. 2446, 96 L.Ed.2d 351 (1987). In Miller, the defendant’s “presumptive sentence” under the Florida guidelines in effect when he committed the offense was 3$ to % years’ imprisonment. By the time the court sentenced the defendant, revisions in the state’s guidelines had increased his presumptive sentence to 5$ *412to 7 years’ imprisonment. The trial court imposed a 7-year sentence. The Supreme Court held that the newer guidelines constituted an ex post facto law because the defendant had been “substantially disadvantaged.” Id. at 432, 107 S.Ct. 2446. It was no answer to say that the defendant might have received the same sentence under the old version of the guidelines. Id., 107 S.Ct. 2446. While the Florida trial court was not bound to give the presumptive sentence, the court’s discretion to give a different sentence was quite limited, and so as a practical matter the change in the guidelines increased the defendant’s sentence. Quoting Weaver v. Graham, 450 U.S. 24, 36, 101 S.Ct. 960, 67 L.Ed.2d 17 (1981), the Court concluded that the new guidelines made “more onerous the punishment for crimes committed before [their] enactment.” Miller, 482 U.S. at 435, 107 S.Ct. 2446. In the federal system, the courts of appeals relied on Miller to hold that applying post-offense Guideline revisions would violate the Ex Post Facto Clause if the revisions increased a defendant’s sentencing range. See United States v. Seacott, 15 F.3d 1380, 1384-86 (7th Cir.1994) (collecting cases).
Since Miller, the Supreme Court has rendered the federal Sentencing Guidelines advisory only. United States v. Booker, 543 U.S. 220, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005). The Seventh Circuit believes Booker alters the ex post facto analysis. See United States v. Demaree, 459 F.3d 791, 795 (7th Cir.2006). The court of appeals concluded “that the ex post facto clause should apply only to laws and regulations that bind rather than advise, a principle well established with reference to parole guidelines whose retroactive application is challenged under the ex post facto clause.” Id. (citing Garner, 529 U.S. at 251, 255-56, 120 S.Ct. 1362; Cal. Dep’t of Corr. v. Morales, 514 U.S. 499, 509, 115 S.Ct. 1597, 131 L.Ed.2d 588 (1995)). The court gave two other reasons. One was that after Booker district judges have “unfettered” freedom to impose sentences outside the sentencing range and sentences within the range are not presumptively reasonable. Demaree, 459 F.3d at 795. The second was that if new Guidelines could not be used because of an ex post facto problem, district judges would get around the problem by saying that they were just taking into account the information that led to the new Guideline. Id.
As to Demaree’s second reason, we reject the idea that district judges will misrepresent the true basis for their actions. As to Demaree’s first reason, the Supreme Court has since confirmed that appellate courts may apply a presumption of reasonableness to a district court sentence calculated in conformity with the Guidelines. Rita v. United States, 551 U.S. 338, 127 S.Ct. 2456, 168 L.Ed.2d 203 (2007); see United States v. Dorcely, 454 F.3d 366, 376 (D.C.Cir.2006). As a result, judges are more likely to sentence within the Guidelines in order to avoid the increased scrutiny that is likely to result from imposing a sentence outside the Guidelines. See, e.g., Graham C. Mullen & J.P. Davis, Mandatory Guidelines: The Oxymoronic State of Sentencing After United States v. Booker, 41 U. Rich. L.Rev. 625 (2007). It is hardly surprising that most federal sentences fall within Guidelines ranges even after Booker — indeed, the actual impact of Booker on sentencing has been minor. See United States Sentencing Commission, Final Report on the Impact of United States v. Booker on Federal Sentencing 57 (2006); United States Sentencing Commission, Final Quarterly Data Report Fiscal Year 2007 1 (2008). Practically speaking, applicable Sentencing Guidelines provide a starting point or “anchor” for judges and are likely to influence the sentences judges impose. See United States v. Settles, 530 F.3d 920, 923-24 (D.C.Cir.2008); Stepha*413nos Bibas, Plea Bargaining Outside the Shadow of Trial, 117 Harv. L.Rev. 2463, 2515-19 (2004); see also Demaree, 459 F.3d at 792.
In addition, under the law of this circuit the existence of discretion does not foreclose an ex post facto claim, as Demaree supposed. “The controlling inquiry,” we held in Fletcher v. Reilly, 433 F.3d 867, 876 (D.C.Cir.2006), is how the parole authority “exercises discretion in practice” and whether “exercise[s] of discretion ... actually ‘create [ ] a significant risk of prolonging [an inmate’s] incarceration’ ” (quoting Garner, 529 U.S. at 251, 120 S.Ct. 1362). The proper approach is therefore to conduct an “as applied” constitutional analysis, see Miller, 482 U.S. at 435, 107 S.Ct. 2446, not the sort of facial analysis conducted in Demaree. When the district court sentenced Turner to 33 months’ imprisonment, it did not pull the number out of thin air. Turner’s sentencing range under the Guidelines then in effect was 33-41 months, see U.S. Sentencing Guidelines Manual, Sentencing Table, or so the court thought. It is obvious that the court decided to sentence Turner at the low end of the 2006 Guideline sentencing range. Had the court used the 2000 Guidelines, Turner’s sentencing range would have been 21-27 months, and it is likely that Turner’s sentence would have been less than 33 months. Turner did not have to show definitively that he would have received a lesser sentence had the district court used the 2000 Guidelines. See Miller, 482 U.S. at 432, 107 S.Ct. 2446. It is enough that using the 2006 Guidelines created a substantial risk that Turner’s sentence was more severe, thus resulting in a violation of the Ex Post Facto Clause. See id. at 433, 107 S.Ct. 2446.
We therefore must remand for resentencing. We have considered and rejected Turner’s other arguments, including his claim that he should have been sentenced to home confinement because of his medical condition. On remand the district court will of course consider Turner’s medical condition as it exists at time of resentencing.
So ordered.