While relations between the United States and Pakistan are on the upswing with the re-opening of the supply routes into Pakistan — which had been shuttered for seven months — significant strains remain between the two countries.
U.S. officials are also angry with the jailing of a Pakistani doctor who helped the CIA track down Osama bin Laden.
The relationship was at its lowest point after NATO troops killed 24 Pakistani soldiers on the Afghan-Pakistan border last November, which prompted Pakistan to shut down the supply route into Afghanistan.
Pakistan re-opened the supply routes after the United States apologized for the attack. The Obama administration inked a deal with Pakistan on Tuesday to keep the supply routes open through 2015.