BBC News with Iain Purdon: 

The American intelligence agency, 

the CIA, has said the United States did not

 inform Pakistan about the operation to

 capture Osama Bin Laden because it feared 

the Pakistani authorities would alert him.

 Pakistan has described the US raids on Sunday

 in Abbottabad as an " unauthorized unilateral

 action" and said it should not be taken as a rule.

 From Washington, here's Mark Mardell.

Leon Panetta, the head of the CIA, 

has told Time magazine it was decided 

that any effort to work with the Pakistanis

 could jeopardize the mission. 

He also reveals that the final decision to opt for

 a commando raid rather than firing cruise missiles

 at the compound from the air was only taken last Thursday.

 Panetta says that President Obama was

 in the end swayed by the number of dead

 a cruise missile attack would leave 

and the risk of hitting other homes.

 So the CIA chief told the Navy SEAL team "Go in there,

 get Bin Laden, and if Bin Laden isn't there,

 get the hell out."