U.N. Atomic Chief Warns of Growing Nuclear Risks

The head of the United Nations nuclear agency gave a sharp warning Tuesday about growing nuclear risks, saying that Iran’s activities risked a regional nuclear arms race and that Russia’s occupation of Ukrainian nuclear sites threatened to imperil the agency’s ability to ensure nuclear material wasn’t being misused.

In a wide-ranging speech at the Australian National University in Canberra, Rafael Grossi, the head of the International Atomic Energy Agency, warned that “we are reaching a defining moment for global nuclear nonproliferation,” in which the risks of the spread of nuclear weapons “pose a problem for everyone.”