title: Missile Defense: LBJ's Bid To Curb Arms Race Gains Support.
abstract: In the article of 31 March on antiballistic missile defense, the last sentence of paragraph 2, p. 1654, should read: "Manpower for producing . . . but the outer limit would be about 200,000, or half the number of contractor employees and civil servants working for NASA at the peak of the Apollo program."
authors.forename: L J
authors.initials: LJ
authors.lastname: Carter