Three American presidents-Dwight D. Eisenhower, John F....

Three American presidents-Dwight D. Eisenhower, John F. Kennedy, and Lyndon B. Johnson-have asked the question: What do we get from aiding Pakistan? Five-Jimmy Carter, George H. W. Bush, Bill Clinton, George W. Bush, and Barack Obama-have wondered aloud whether Pakistan's leaders can be trusted to keep their word.