Lab officials excited by new H-bomb project

For the first time in more than 20 years, U.S. nuclear-weapons scientists are designing a new H-bomb, the first of probably several new nuclear explosives on the drawing boards.

If they succeed, in perhaps 20 or 25 more years, the United States would have an entirely new nuclear arsenal, and a highly automated fac- tory capable of turning out more warheads as needed, as well as new kinds of warheads.