Terry Jones had received death threats. If any of those were interstate calls, the FBI should have been coming to his defense, rather than demanding he back down. Are the IRS paying a visit to him next?
Here’s a debate with him and David Wood, a christian apologist who works with muslims and he had received at least 100 at that time, including 3 that were intercepted and arrested with explosives and I believe assault rifles.
http://www.aomin.org/aoblog/index.php?itemid=4173