<p><span class="deck">FOR MORE THAN A DECADE NOW, TENS OF THOUSANDS OF AMERICANS HAVE BEEN LEAVING LETTERS AND SNAPSHOTS, CIGARETTES AND CLOTHING AND BEER FOR THEIR FRIENDS, LOVERS, AND PARENTS WHO NEVER MADE IT BACK FROM VIETNAM.</span></p>
<p>CBS News anchor Walter Cronkite underwent a dramatic change of heart during the Vietnam War—and in doing so, changed the face of broadcast journalism.</p>