The similarities between the Taliban of Afghanistan and the Islamic Republic of Iran are striking and worth assessing before the U.S. aids either in any way or makes agreements with either that will affect our national security. Both the Islamic Republic of Iran and the Taliban are radical Islamist terrorist regimes that hold the people of their two great countries as hostages. Both are built around an extreme interpretation of Islam that makes them hostile, and often violent, toward all non-Muslims, as well as toward Muslims who do not share their religious or political views. Both regimes suppress the universally...