Juan Fernando Licea-Cedillo (Licea) appeals his guilty-plea conviction for conspir *322 acy to transport and harbor undocumented aliens for financial gain, resulting in death. Licea argues that the Government breached the plea agreement by failing to move for a reduction based on his acceptance of responsibility.

Because Licea did not raise this argument in the district court, review is for plain error. See United States v. Reeves, 255 F.3d 208, 210 (5th Cir. 2001). Even if the Government breached the plea agreement, Licea has not demonstrated that any error affected his substantial rights. See United States v. Miller, 406 F.3d 323, 335-36 (5th Cir.), cert. denied, — U.S.-, 126 S.Ct. 207, 163 L.Ed.2d 278 (2005). The district court clearly and repeatedly rejected Licea’s denial that he oversaw the placement of the aliens into the grain car, as well as his argument that he was not, as part of the conspiracy, responsible for the actions which led to the deaths of eleven aliens.

Accordingly, the judgment is AFFIRMED.