News In Brief

Improvements in hot line OK'd by US-Soviet team

American and Soviet negotiators approved an agreement Tuesday to upgrade the hot line between Washington and Moscow. Under the agreement, the two nations will modernize the slow, 66 -word-a-minute teletype circuit that went into operation Aug. 30, 1963, after the Cuban missile crisis a year earlier. American officials have said the teletype will be replaced with high-speed printers able to transmit almost instantaneously long texts, maps, charts, and photographs.