Two Villages of Mylai Survivors Laid Waste by Enemy in Drive
2 villages, rebuilt in '71 by survivors of '68 Mylai massacre, and 21 neighboring villages laid waste last wk, reptdly by Vietcong; 30,000 people reptd homeless, 23 civilians reptd killed, so far, as result of Vietcong's largely unopposed sweep through Batangan Peninsula; US official says 'it's a 2-to 3-yr effort at pacification, at trying to convince the people that the Govt can protect them, down the drain'