The confidence about the Pakistan‘s complicity in sheltering Osama bin laden was so high that President Obama ordered the navy SEALs to shoot their way out, if confronted by Police or any other force of Pakistan.
In addition to the Team of about 48 SEALs in two helicopters, two more helicopters and 50 Seals were kept as stand by.
“One senior Obama administration official, pressed on the rules of engagement for one of the riskiest clandestine operations attempted by the C.I.A. and the military’s Joint Special Operations Command in many years, said: “Their instructions were to avoid any confrontation if at all possible. But if they had to return fire to get out, they were authorized to do it.”
The planning also illustrates how little the administration trusted the Pakistanis as they set up their operation. They also rejected a proposal to bring the Pakistanis in on the mission.
Under the original plan, two assault helicopters were going to stay on the Afghanistan side of the border waiting for a call if they were needed. But the aircraft would have been about 90 minutes away from the Bin Laden compound.”
http://www.nytimes.com/2011/05/10/world/asia/10intel.html?_r=2&partner=rss&emc=rss