NATIONAL DEFENSE: Going Up

The price of a sneak bombing attack on the U.S. was climbing higher. Last week the Air Force announced that the protective radar screen around the U.S., begun 15 months ago and carried forward under priority orders for the past year, would be finished, in 1951, would stretch out to include Alaska next year. Still needed: more & better-equipped all-weather jet interceptors, many more civilian airplane spotters to back up the radar.