Sunni clerics and Baghdad residents appealed on Friday for the release of an American and three other Christian humanitarian workers kidnapped by a group that has threatened to kill. The hostages — Tom Fox, 54, of Clear Brook, Va.; Norman Kember, 74, of London; and Canadians James Loney, 41, and Harmeet Singh Sooden, 32 — are members of the Christian Peacemaker Teams and were abducted in Baghdad on Nov. 26. Full Story