A nuclear power plant became the target of a disruptive cyber attack two to three years ago, and there is a serious threat of militant attacks on such plants, the head of the United Nations nuclear watchdog said on Monday.

International Atomic Energy Agency (IAEA) Director Yukiya Amano also cited a case in which an individual tried to smuggle a small amount of highly enriched uranium about four years ago that could have been used to build a so-called “dirty bomb”. Continue Reading.