The principle of self-defensive pre-emptive strikes are legitimate, as are targeted killings. That applies to heads of states who support terror, as are any and all heads of terror organizations, including religious and/or political leaders. Unfortenately democratic countries have traditionally been unable to agree on a definition of terrorism, a fact that has hindered efforts to fight the phenomenon on an international level. This new kind of war is explained at : http://israelagainstterror.blogspot.com/2008/02/new-war_01.html

Like the UK has 'train spotters'?