Relying on plutonium produced at Dimona, Israel has had the ability to fire nuclear warheads since the early 1970s, according to that article, co-authored by Hans M. Kristensen, director of the Nuclear Information Project with the Federation of American Scientists, and Matt Korda, a researcher at the same organization.

Israel ratcheted up attacks on Iran even as Tehran vowed to retaliate against US strikes on its nuclear facilities over the weekend, fueling fears of a wider war in the Middle East and rattling global markets.

By Parisa Hafezi, Phil Stewart and Maayan Lubell ISTANBUL/WASHINGTON/JERUSALEM (Reuters) -Iran and Israel traded air and missile strikes as the world braced on Monday for Tehran's response to the U.S.