Peter Arnett is undeniably the dean of his generation's war correspondents, a breed apart. Daring, wily, willing to put himself at enormous risk for a story. Arnett is a thinking man and a man of action. From his youth in New Zealand in the 1940s, Arnett knew journalism would be his ticket to the world. And it was - to Bangkok; then to Laos, where Arnett swam across the Mekong River to file his dispatches from