I certainly can't express that idea better than Mr. Mill did, however, allow me to be more practical and less idealistic. Eventually, bin Laden and his ilk will acquire biological and/or nuclear weapons and there can be no doubt that they will use them. Pacifism only works if your foe, despite whatever atrocities they may commit, deep down has a conscience. It worked for Ghandi in India against the British. It wouldn't have worked for the Jews against the Nazis. It won't work for the west against terrorism.