Incidents related to trafficking or malicious use, 1993-2016

Over the past quarter century the International Atomic Energy Agency, which tracks and monitors bomb-useable material across the globe, uncovered 270 times when someone tried or succeeded to get such materials with 'malicious intent.' As of 2016, the last year of available data, these nefarious activities constitute 9 percent of all incidents tracked by the agency. The IAEA reports the incidents include a range of quantities and the problem persists even today.