A petitioner for writ of coram nobis must satisfy a four-part test, one element of which is that “valid reasons exist for not attacking the conviction earlier.” Hirabayashi v. United States, 828 F.2d 591, 604 (9th Cir. 1987). In United States v. Riedl, case no. 06-10424 (August 6, 2007), the petitioner argued to the Ninth Circuit that even if the court did not accept her reasons for delay as valid, the delay could not preclude relief unless the government asserted laches, i.e., that it would suffer prejudice from a grant of the writ in light of the delay. The Ninth Circuit rejects the argument, finding that undue delay precludes relief…