Factors involving in the contingency operations, distrust, and different priorities of both nations in the Afghan War led to serious criticism as both sides began to criticize each other's strategy to achieve common goals in War on Terror. The American politicians at the U.S. Congress publicly accused Pakistan of harboring of Osama Bin Laden, Afghan Talibans and their "Quetta Shura" while the lawmakers in the Pakistani Parliament leveled serious accusations at the Americans doing very little to control the porous eastern border of Afghanistan, where Pakistan's most-wanted terrorist, Mullah Fazlullah and his organization were believed to be hiding. Furthermore, drone strikes by both nations, a friendly fire incident at Salala, and an incident involving the arrest of a spy in Lahore further complicated relations. These issues sharply soured the public opinion in both nations, with public opinion of each nation ranking the other as one of the least favored countries in 2013.