CIA watched bin Laden from nearby safe house inside Pakistan

ABBOTTABAD/NEW YORK,  (Reuters) – Extensive  surveillance of Osama bin Laden’s hideout from a nearby CIA safe  house in Abbottabad led to his killing in a Navy SEAL operation,  U.S. officials said, a revelation likely to further embarrass  Pakistan’s spy agency and strain ties.

The U.S. officials, quoted by the Washington Post, said the  safe house was the base for intelligence gathering that began  after bin Laden’s compound was discovered last August, and which  was so exhaustive the CIA asked Congress to reallocate tens of  millions of dollars to fund it.

“The CIA’s job was to find and fix,” the Post quoted one  U.S. official as saying, using special forces terminology for  locating a target. “The intelligence work was as complete as it  was going to be, and it was the military’s turn to finish the  target.”

Osama bin Laden

U.S. officials told the New York Times that intelligence  gathered from computer files and documents seized at his  compound showed bin Laden had for years orchestrated al Qaeda  attacks from the Pakistani town, and may have been planning a  strike on the U.S. rail sector this year, the 10th anniversary  of the Sept. 11, 2001 attacks.

One U.S. official said there was no indication from the  intelligence that further plans were drawn up for the railway  plot or that steps were taken to carry it out. The U.S.  Department of Homeland Security said it had no information of an  imminent threat.

The fact bin Laden was found in a garrison town — his  compound was not far from a major military academy — has  embarrassed Pakistan and the covert raid by U.S. commandos has  angered its military.