The head of the U.N. nuclear watchdog agency said Monday that there is a possibility of both radiological and chemical contamination within Iran’s main nuclear enrichment facility in Natanz following Israeli strikes, although radiation levels outside the complex are presently normal. The radiation poses a significant danger if uranium is inhaled or ingested, International Atomic Energy Agency Director-General Rafael Mariano Grossi said. The risk can be effectively managed with appropriate protective measures, such as using respiratory protection devices while inside the facilities, Grossi said.