It's a brief article, but dovetails nicely with the recent Slashdot story about "The War on the Unexpected." That article touched on many examples of well-meaning, but misguided and paranoid citizens reporting innocent activities to the authorities. In the current climate, the potential also exists for maliciously false and far from well-meaning reports made to the Feds about people one simply doesn't care for, or those made merely as a sick prank.
While the man admitted to sending the e-mail to the FBI, he claims he thought no harm would come from it because "he did not think the US authorities would be stupid enough to believe him." To quote the great philosopher Bugs Bunny, 'Nyahh....he don't know us very well, do he?'