It’s not well known that Israel, Iran and the United States have all signed a nuclear arms control treaty. It’s the Comprehensive Nuclear Test Ban Treaty (CTBT), which bans all nuclear test explosions.
Israel, Iran and the U.S. also host detection stations to make sure no country cheats this treaty. These are stations that detect seismic activity or radioactive particles that would signal a nuclear weapons explosion. This international monitoring system is meant to catch any country that tries to do secret nuclear tests in violation of the CTBT.
See my commentary at The Huffington Post: