Cases of Nuclear Material Smuggling Discovered by Homeland Security

The United States Department of Homeland Security (DHS) states that since the year 2000 there are about 200 to 250 cases of nuclear and radioactive materials trafficking occurring annually.

The difference in figures is due to the fact that the IAEA only reports incidents that its members have confirmed or released publicly, where the DHS includes all known or suspected incidents that were identified by the United States and other governments.