point of information: Tritium (H with a weight of 3) has a short halflife, and weapons which use it ( ie, fusion devices) age and have to be "remanufactured" with new or recycled tritium. By use of computer models, the more efficient use of the limited and shrinking stockpile of material can be accomplished.
I really do NOT want the production lines for NEW nuclear materials to be brought back on line- the less of the stuff around, the better for all of us.