US commemorates 9/11; thousands expected at ground zero

NEW YORK (AP) — While the U.S. contends with the destruction caused by two ferocious hurricanes in three weeks, Americans also are marking the anniversary of one of the nation's most scarring days.Thousands of 9/11 victims' relatives, survivors, rescuers and others are expected to gather Monday at the World Trade Center to remember the deadliest terror attack on American soil.Sixteen years later, the quiet rhythms of commemoration have become customs: a recitation of all the names of the d