discussed Cited "see" Kincaid Wilson v. State of North Carolina, D. P. Henry, Administrator See Alford v. North Carolina, 405 F.2d 340 (4th Cir. 1968), probable jurisdiction noted 394 U.S. 956 , 89 S.Ct. 1306 , 22 L.Ed. 2d 558 (1969), restored to calendar for reargument 397 U.S. 1060 , 90 S.Ct. 1494 , 25 L.Ed.2d 682 , and see the Court’s statement in Brady v. United States, supra, at 1474: “We would have serious doubts about this case if the encouragement of guilty pleas by offers of leniency substantially increased the likelihood that defendants, advised by competent counsel, would falsely condemn themselves.”