Iran's Fordo nuclear site, located 80 metres (262 feet) underground, is "very difficult to destroy", according to nuclear physicist and former UN weapons inspector David Albright.
In an interview with BBC Radio 5 Live Breakfast, Albright said lessons learned during inspections in Iraq enabled the International Atomic Energy Agency to develop "incredibly good ways of investigating secret programmes".
He said, “Now that Israel’s striking, I believe Israel can put that site out of operation for a long time. The US could destroy it completely.”
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Albright, who also founded the Institute for Science and International Security in Washington, described Fordo as “one of the more formidable” nuclear facilities, but noted it’s not the only one and therefore shouldn’t be overemphasised.
Fordo was initially developed during Iran’s early 2000s crash nuclear weapons programme.
Source: With inputs from BBC