ALONGSIDE the broad, American-built expressway between Saigon and Bien Hoa, President Nguyen Van Thieu's eager campaign workers have already hung banners emblazoned with Thieu's "Four Nos" sloganno neutrality, no coalition government, no concession of any South Vietnamese territory to the Communists, no Communist activity anywhere in South Viet Nam. Thieu might as well have added a Fifth No: no opposition in the presidential campaigns.
With only five weeks remaining until South Viet Nam's October election, there was still no end in sight to the political snafu that has become at once a bitter...