Israel has 80 nuclear warheads and the potential to double that number, according to a new report by U.S. experts. In the Global Nuclear Weapons Inventories, recently published in the Bulletin of the Atomic Scientists, proliferation experts Hans M. Kristensen and Robert S. Norris write that Israel stopped production of nuclear warheads in 2004. But the country has enough fissile material for an additional 115 to 190 warheads, according to the report, meaning it could as much as double its arsenal.