WAP2002040152 - ALEXANDRIA, Va., April 1 (UPI) -- Marilyn Walker, mother of John Walker Lindh who is on trial for his actions with the Taliban, enters the federal courthouse in Alexandria, Va., on April 1, 2002. Lindh was in court for a hearing to consider what evidence will be used in his upcoming trial. rw/rlw/Roger L. Wollenberg UPI