The Federal Emergency Management Agency posts a warning from the White House on its Web site about “dirty bombs” and radiological “suitcase bombs.” The warning says that a terrorist’s nuclear weapon would “probably be limited to a single smaller ‘suitcase’ weapon.” It adds: “The strength of such a weapon would be in the range of the bombs used during World War II. The nature of the effects would be the same as a weapon delivered by an intercontinental missile, but the area and severity of the effects would be significantly more limited.” [Federal Emergency Management Agency, 5/2006] In late 2007, a senior FBI agent will say that such “suitcase nukes” are unlikely to exist outside of fiction (see November 10, 2007).