Anger and angst are the enemy now Up to 300,000 may have post-traumatic stress disorder. MIKE DRUMMOND mdrummond@charlotteobserver.com National Guard Sgt. Chuck Rice shows some classic symptoms of post-traumatic stress disorder. As a veteran, he's eligible for free counseling. But he hasn't gone. Rice, 37, just doesn't want to deal with the bureaucracy and the 40-minute drive to the