Bells tolled at ground zero and solemn tributes unfolded around the country as Americans looked back Monday on the horror and legacy of 9/11.
People gathered at memorials, firehouses, city halls, campuses and elsewhere to observe the 22nd anniversary of the deadliest terror attack on US soil.
Nearly 3,000 people were killed when hijacked planes crashed at New York’s World Trade Center, the Pentagon and Shanksville, Pennsylvania, and the attack reshaped American foreign policy and domestic fears.