What has been done to reduce the risk of nuclear theft and terrorism?
A wide range of programs in the United States and elsewhere are making real progress in reducing the global danger of nuclear terrorism — but much more remains to be done. Through Nunn-Lugar cooperative threat reduction programs and related efforts, security has been dramatically improved at scores of buildings and bunkers with either nuclear weapons or the materials needed to make them in the former Soviet Union and in other countries around the world. Hundreds of kilograms of HEU have been removed from potentially vulnerable nuclear sites around the world. HEU-fueled research reactors are being converted to run on low-enriched uranium (LEU) fuel that cannot be used in a nuclear bomb, and their HEU is being removed. As a second line of defense, radiation detectors are being installed at key ports and border crossings around the world — and at U.S. border crossings and elsewhere within the United States. Hundreds of tons of potential nuclear bomb material are actually being destroyed (