Kerry has the opportunity to lead a movement once again... by rallying a very angry public to force a change in policy. Richard Nixon worried about Kerry's potential as a leader back in the 70s; maybe the new Kerry will finally prove him right.John Kerry came to national attention not because he was a war hero but because he was a dissenter. In 1971, he appeared on "The Dick Cavett Show," testified before Congress, and electrified anti-war rallies with his message that the war was wrong. His phrase, "How do you ask a man to be the last man to...