Tenth Anniversary Of Oklahoma City Bombing Observed

OKLAHOMA CITY - APRIL 19: Regina Bonny, a survivor of the 1995 bombing of the Alfred P. Murrah Federal Building, touches the chair representing one of her five co-workers who died in the bombing in the "Field of Empty Chairs" at the Oklahoma City National Memorial April 19, 2005 in Oklahoma City, Oklahoma. April 19, 2005 is the 10th anniversary of the morning when Timothy McVeigh ignited a 4,800-pound fertilizer truck bomb that killed 168 people in what was, at the time, the worst terror attack in U.S. history. (Photo by Win McNamee/Getty Images)