Osama bin Laden's hiding places are shrinking, but they aren't gone. The accused terrorist could sneak across a mountain border to Kashmir, blend in with refugees inside Afghanistan or - perhaps most likely - hunker down in a cave and hope not to be found.
Even with America's chances improving, People can hide in caves for long periods, Defense secretary Donald H. Rumsfeld said on Monday. "This will take time."

"If he's attacked, bin laden may try to ensure that others - Americans - die with him, experts warn: either by strapping on explosives to detonate if US troops approach, or by ordering another strike on America as a final act.
He may try to hide from US, wait it out. Or he may decide to die a martyr and launch some attack when he's going down, said Herbert E. Meyer, vice chairman of the CIA's national intelligence council during the Reagan administration.
Bureau Report