July 1, 1961 - A step to provide U.S. ground forces in West Germany with vastly increased firepower through the new Davy Crockett rocket weapon was indicated today among possible military moves in the Berlin crisis. This weapon is capable of launching either nuclear or conventional warheads across battle lines at ranges up to nine miles. The launcher can be mounted on a jeep or similar vehicle and operated by two men. It is said to be light enough for one man to carry. Army experts have said that its nuclear warhead packs tremendous force, yet has an effective radius of perhaps two miles, small enough so that the troops that use the weapon, nearby friendly troops, and civilian populations are not endangered by the blast.