Saigon: A mushroom-shaped cloud of smoke rises from the burning Cholon sector of the city of Saigon , scene of some of the heaviest fighting and destruction in the current 'peace talks ' offensive of the Communists. In the foreground is a military cemetery with row upon row of graves. It is near the site of the Tun Son Nhut airbase just outside the city . A South Vietnames solder (Left) continues on his way . 9 May 1968