And while Dr. Bethe estimated that it would take three years to complete the first H-bomb, we must remember that he spoke several months before the guns of Korea gave the alarm. And we must not forget that had it not been for the threat of the Nazis we might not have had the A-bomb in less than twenty-five and possibly fifty years, according to the best estimates, though the present Communist threat might have reduced the time considerably. Furthermore, we also have the word of Senator McMahon, who should know, that “the hydrogen development will be cheaper than its uranium forerunner.” This lends weight to the earlier deduction that only relatively small amounts of tritium will be necessary, since, as we have seen, large amounts would be prohibitively costly in terms of vast quantities of plutonium. Small amounts of tritium, in turn, mean that it would take a relatively short time to produce them. A reasonable “guestimate,” assuming that 150 to 300 grams of tritium would be required, is that such amounts could be produced within a few months, particularly if we employ all our huge plutonium plants at Hanford on the task of producing tritium. It is therefore within the realm of possibility that when we carry out the announced tests of the latest models of our A-bombs at Eniwetok, sometime in the spring or summer of 1951, one of them will be the first H-bomb. It may not be the best model, and it need not be the equal in power to a thousand wartime model A-bombs. In fact, it would be highly inadvisable to use such a bomb in a mere test. It will be an H-bomb, nevertheless, and from it we shall learn how to make bigger and better ones, which is all that a test is supposed to do. For unlike the A-bomb, which cannot be made below or above a certain size, the H-bomb can be made as small or as large as the designer wants it to be. As Professor Bacher has pointed out, the H-bomb is “an open-ended weapon.” One of the major outcomes of the Korean aggression instigated by the Kremlin has thus been to bring the H-bomb into being much sooner than it would otherwise have been. And that is only one branch of the chain reaction that the Korean guns have set in motion.