LONDON - Terrorist groups trying to get hold of nuclear weapons on the black market are becoming more sophisticated and the world needs to do more to prevent sensitive material from falling into their hands, the UN nuclear chief said on Wednesday.
Addressing the Chatham House think tank in London, International Atomic Energy Agency chief Yukiya Amano said one of the main risks was that militants could detonate a so-called nuclear "dirty bomb" to contaminate a major city.
"Terrorists (gaining) access to nuclear material is a real threat ... The amount (trafficked illicitly) is small but they are getting more and more professional," Amano said.
