The U.S. has quietly decided to release more than $1.6 billion in military and economic aid to Pakistan.

The assistance was suspended when relations between the two countries disintegrated in the wake of the covert raid that killed Osama bin Laden and deadly U.S. airstrikes against Pakistani soldiers.

Officials and congressional aides say ties have improved enough to allow the money to flow again.

American and NATO supply routes to Afghanistan are open. Controversial U.S. drone strikes are down.

The U.S. and Pakistan are restarting their "strategic dialogue." Pakistan's new prime minister, Nawaz Sharif, is traveling to Washington for White House talks this coming week.

But the U.S. hasn't promoted its revamped aid relationship with Pakistan. Neither has Pakistan.

The silence reflects the lingering mutual suspicions between the two.

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