NEW YORK - The sweeping immigration bills in Congress would add many thousands of beds to the patchwork network of detention facilities that hold illegal immigrants and asylum-seekers — places that critics say are over-costly and under-regulated. Already, activists say, far too many nonthreatening people are held for too long in demoralizing conditions. "I'm not against homeland security," said Edward Neepaye, a pastor and human-rights campaigner from Liberia who was detained in New Jersey for four months. "But the greatest nation on earth must come up with a remedy that accords immigrants some respect, rather than throwing them in jail...