Viet Cong and North Vietnam accuse U.S. of breach in cease-fire
In Saigon the Communists accuse the United States and Saigon of wide violations undermining the two month old cease-fire. President Thieu leaves for a Nixon summit and a tour seeking billions in aid while government forces threaten action against a siege near Tong Le Chan. The U.S. and North Vietnamese participation in the peace keeping body ended Thursday, leaving a South Vietnamese and Viet Cong group.