Bin Laden at Compound Said to Help Guide Al-Qaeda Operations

Osama bin Laden helped to guide the tactics, strategy and operations of al-Qaeda while holed up in his compound in Pakistan, according to an initial analysis of material seized during the attack that killed him, a U.S. official said.

The review of the materials also uncovered a handwritten note showing that the terrorist group in February 2010 was considering attacks on American railroads, a second U.S. official said.