'Your papers, please' must never be heard in America

Survivors of Cambodia's Khmer Rouge regime held a remembrance ceremony in an infamous "killing field" Sunday, a day before a U.N.-backed tribunal begins a trial for three of the accused architects of some of the 20th century's worst atrocities.
Cambodia's U.N.-backed genocide tribunal on Thursday formally indicted the four top surviving leaders of the Khmer Rouge regime blamed for 1.7 million deaths in the 1970s, paving the way for the panel's long-awaited second trial next year.