Beginning in the 1990s, and even more after 9/11, US support has been justified by the claim that both states are threatened by terrorist groups originating in the Arab and Muslim world, and by ‘rogue states’ that back these groups and seek weapons of mass destruction. This is taken to mean not only that Washington should give Israel a free hand in dealing with the Palestinians and not press it to make concessions until all Palestinian terrorists are imprisoned or dead, but that the US should go after countries like Iran and Syria. Israel is thus seen as a crucial ally in the war on terror, because its enemies are America’s enemies. In fact, Israel is a liability in the war on terror and the broader effort to deal with rogue states.