The need for new blood in South Viet Nam's grim war is best argued by the reluctance with which old blood is shed. Last week, as if to confirm the pressing reasons behind Washington's decision to replenish its forces in the country (see THE NATION), Saigon's troops gave a clinically perfect demonstration of battle fatigue.
A Chunk of Junk. As three battalions of South Vietnamese infantry pushed toward Viet An, an outpost 31 miles south of Danang, they passed a sign erected by the Communist Viet Cong. It read: "A 250,000-man French expeditionary corps came this way and was destroyed....