
    UNITED STATES of America, Plaintiff-Appellee, v. Juan LOPEZ-CARDENAS, Defendant-Appellant.
    No. 03-41421
    Summary Calendar.
    United States Court of Appeals, Fifth Circuit.
    Decided July 1, 2004.
    Mitchel Neurock, U.S. Attorney’s Office, Laredo, TX, James Lee Turner, Assistant U.S. Attorney, Houston, TX, for Plaintiff-Appellee.
    Roland E. Dahlin, II, Federal Public Defender, Aurora Ruth Bearse, Federal Public Defender’s Office, Houston, TX, for Defendant-Appellant.
    Before SMITH, DeMOSS, and STEWART, Circuit Judges.
   PER CURIAM:

Juan Lopez-Cardenas pleaded guilty to possession of more than 100 kilograms of marijuana with intent to distribute and has appealed his sentence. Lopez was among a group of persons carrying bundles of marijuana across the United States border with Mexico. Lopez contends that he should have been sentenced on the basis of the marijuana he carried only and that his offense level should have been adjusted because he had a minor role.

Under U.S.S.G. § 2Dl.l(a)(3), the base offense level for a defendant convicted of a drug offense is determined based on the quantity of drugs involved. United States v. Hernandez-Coronado, 39 F.3d 573, 574 (5th Cir.1994). Under U.S.S.G. § lB1.3(a)(l), “[t]his quantity includes both drugs with which the defendant was directly involved and drugs that can be attributed to the defendant in a conspiracy as part of his relevant conduct.” Id. The district court did not clearly err in finding that Lopez was responsible for the drugs carried by the other couriers because he was engaged with them in a jointly undertaken criminal activity. See id.

Because Lopez did not carry his burden under U.S.S.G. § 3B1.2(b) of showing that he was substantially less culpable than the average participant, the district court did not clearly err in refusing to adjust Lopez’s offense level because of his role in the offense. See United States v. Brown, 54 F.3d 234, 240-41 & n. 7 (5th Cir.1995).

Lopez contends that 21 U.S.C. § 841(a) & (b) is unconstitutional in light of Ap-prendi v. New Jersey, 530 U.S. 466, 120 S.Ct. 2348, 147 L.Ed.2d 435 (2000). Lopez acknowledges that this issue is foreclosed by United States v. Slaughter, 238 F.3d 580, 582 (5th Cir.2000). He raises the issue to preserve it for possible further review.

AFFIRMED. 
      
       Pursuant to 5th Cir R. 47.5, the court has determined that this opinion should not be published and is not precedent except under the limited circumstances set forth in 5th Cir. R. 47.5.4.
     