Crowds gather in NYC, DC after bin Laden killed

People cheer outside the White House over the death of Osama Bin Laden in Washington, May 1, 2011. [Photo/Agencies]

Revelers stand on trees outside the gates after US President Barack Obama announced that US authorities have recovered the dead body of Al-Qaida leader Osama bin Laden, at the White House in Washington, May 1, 2011. [Photo/Agencies]