U.S. ACTS TO SELL STOCKPILE COPPER TO EASE SHORTAGE; McNamara Tells of Freeing 200,000 Tons, Noting a Recent Rise in Prices
Sec McNamara says Govt, to ease severe shortage and relieve upward pressure on prices, will sell 'at least' 200,000 tons from stockpile (with current 35,000-ton excess); Pres Johnson acts on Atty Gen Katzenbach advice that law permits him to dip into 'permanent' stockpile to meet natl defense needs; Govt to ask NY Commodity Exch to raise margin requirements for traders; other plans; McNamara comments on moves; says indus execs were consulted