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September 11 Retrospective
NEW YORK - SEPTEMBER 11, 2001: (SEPTEMBER 11 RETROSPECTIVE) Smoke pours from the twin towers of the World Trade Center after they were hit by two hijacked airliners in a terrorist attack September 11, 2001 in New York City. (Photo by Robert Giroux/Getty Images)

Photos: Remembering 9/11

September 11, 2012

It was a terror attack that shook the world’s most powerful nation. The attack on the World Trade Centre in New York was an attack on the very symbol of prosperity and unity. On its 11 anniversary, here is a look at the day terror gripped America and the whole world.