BAGHDAD, Iraq (AP) -- The young American decapitated on a videotape posted by an al-Qaida-linked Web site was never in U.S. custody despite claims to the contrary by his family, U.S. authorities said Wednesday. Statements by American officials in Iraq leave many unanswered questions, including why Iraqi police jailed Nicholas Berg for nearly two weeks and why U.S. officials repeatedly questioned him in custody. Also unknown is where and under what circumstances Berg disappeared. He was last in contact with U.S. officials in Baghdad on April 10, and his body was found Saturday in Baghdad. Staff members at the...