AP - One of the four suicide attackers who bombed London's transit system on July 7 made a dramatic farewell in a videotape that also included al-Qaida's No. 2 Ayman al-Zawahri calling the subway attack "a slap to the face" of Britain and warning of more bloodshed.]]>{br}{br}View the Entire Article{br}{br}Click Here to Launch in a new Window