Word: radars
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Dates: during 1960-1969
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Sentinel's system of radar tracking stations, long-range Spartan missiles and short-range Sprint rockets could indeed be of some avail against Chinese intercontinental missiles, although Peking has fallen a year behind schedule and is not expected to pose any threat until the mid-1970s . Against the real and present peril of 780 land-based Soviet missiles already pointed at U.S. targets, however, Sentinel will afford virtually no protection. Even a "thick" ABM shield, costing $40 billion instead of the projected $5.5 billion for the thin screen, would be hopelessly porous. Missile experts are quicker to devise...
Beginning two weeks ago and lasting for several nights, allied counter-mortar radar along the eastern edge of the DMZ, where the zone is bordered by the South China Sea, had indeed showed blips that looked like slow-moving, low-flying aircraft-like helicopters. American artillerymen had also reported sighting a series of strange moving lights near the Ben Hai River, the dividing line between North and South Viet Nam. Artillery and aircraft promptly opened fire on the targets and the blips disappeared...
Opinion as to what had happened seesawed. Some officers thought it "highly probable" that a misreading of radar signals-images that looked like slow-moving helicopters but were really friendly vessels patrolling offshore-caused the allies to fire on their own ships. At week's end, while a special board of inquiry tried to fathom the mystery, U.S. officials in Saigon allowed that North Vietnamese helicopters might indeed have been in action in the DMZ. Whether or not they have come that far south, big Russian-built helicopters are now a standard part of North Viet...
...M.I.T. and Johns Hopkins, the only two academic entries on an otherwise corporation list, are among the top 100 because both institutions are involved in expensive applied research in such fields as Over-the-horizon radar, electromagnetic applications and military uses for the laser beam. M.I.T.'s contracts last year totaled $94.9 million, while Hopkins' amounted to $71.1 million...
...crew of only three men. The missiles are not notably precise-at a maximum range of about seven miles, gunners are lucky if they hit within 400 yards of their target-but the lack of accuracy, if anything, enhances their terrorist effect. Despite allied ground and air patrols and radar-guided counterbattery fire, the Communists have thrown almost 400 rocket and mortar rounds at the capital since early May. The gunners have rarely been caught; last week, when 12,000 U.S. and Vietnamese troops fanned out to sterilize the rocket belt, they found little besides scarred firing positions...