United States v. Ortiz-Gomez, ___ F.3d ___, ___, 2009 WL 604133 (5th Cir. Mar. 10, 2009) (finding, on the basis of common sense, a realistic probability that a threat to commit arson against property, even if no person was present, would be prosecuted as making a terroristic threat, in violation of 18 Pennsylvania Consolidated Statutes 2706(a)(1) [communicating a threat to "commit any crime of violence with intent to terrorize another"]).