dirty bomb

Most of the 23 countries that pledged at the 2014 Nuclear Security Summit to secure radiological materials have fulfilled that commitment or are on track to do so by the end of 2016, according to report by the MacArthur-supported Nuclear Threat Initiative. However, the report finds significant gaps in the system for securing dangerous radiological materials from theft. It recommends that governments and the private sector work together to develop a more effective system for securing radiological sources, and replace the use of dangerous isotopes with alternate technologies, where feasible.