Also expect to hear: 20,000 pounds is a threshold, sort of like the speed of sound, and anything larger will ignite all the oxygen and turn the earth, make that planet, into a french fry.
After the 1991 Gulf War, the United States started to get rid of it's various FAE weapons.
That coincides with the Clinton Administration. He also depleted our inventory of cruise missiles before departing. Legacy?? There is pleanty of legacy for him as long as honest researchers exist.