Iran’s sensitive nuclear sites buried half a mile underground, Grossi says

Iran’s most sensitive nuclear infrastructure lies far beneath the surface and cannot be destroyed by a single strike, UN nuclear watchdog chief Rafael Grossi told the Financial Times, as he warned of the risks if negotiations over the country’s nuclear program fail.

“The most sensitive things are half a mile underground — I have been there many times,” FT quoted Grossi as saying. “To get there you take a spiral tunnel down, down, down.”

Grossi said a breakdown in talks would likely lead to conflict. “The Iranian thing has incredible potential to become catastrophic. If there is a failure in negotiation, this will imply most probably military action,” he said.