Written by KIMBERLY DOZIER

WASHINGTON (AP) — In another blow to Washington's relationship with Pakistan, U.S. officials say Pakistan failed another test to prove it could be trusted to go after American enemies on its soil by intentionally or inadvertently tipping off militants at two more bomb-building factories in its tribal areas, giving the suspected terrorists time to flee.

The two sites' locations in the tribal areas had been shared with the Pakistani government this past week, the officials said Saturday. The Americans monitored the area with satellite and unmanned drones to see what would happen.

In each case, within a day or so after sharing the information, they watched the militants depart, taking any weapons or bomb-making materials with them, just as militants had done the first two times. Only then, did they watch the Pakistani military visit each site, when the terror suspects and their wares were long gone, the officials said, speaking on condition of anonymity to discuss matters of intelligence.

The Americans suspect that... http://hosted2.ap.org/APDefault/*/Article_2011-06-19-US-Pakistan/id-fa69...