Osama bin Laden, the mastermind behind the Sept. 11 attacks against the United States, is dead, and the U.S. is in possession of his body, a person familiar with the situation said late Sunday.President Barack Obama was expected to address the nation on the developments Sunday night.Two senior counterterrorism officials confirmed that bin Laden was killed in Pakistan last week. One said bin Laden was killed in a ground operation, not by a Predator drone. Both said the operation was based on U.S. intelligence, and both said the U.S. is in possession of bin Ladens body.

via Sources: Al-Qaida head bin Laden dead - Yahoo! News.