THIEU, IN TEARS, ASKS SACRIFICES; President Defends Austerity Policy and Vows to Quit if Majority Opposes Him
Nguyen Van Thieu, in Natl Day TV s, makes emotional appeal to S Vietnamese people for sacrifice and self-reliance; weeps as he pledges to give up presidency if day comes when his policies are opposed by majority of people or threaten to lead country into Communist domination; asks support of people; speaks of Amer troop withdrawals in terms of yrs