Imagine a not-too-distant future, where a businessman gets jacked on taxes or some petty regulation or another. He makes some unkind comments about the government to his brother on the phone. Nothing that doesn't get said a bajillion times a day from sea to shining sea: "They oughtta hang every one of those jerks," or "I wouldn't mind if they bombed Washington, as long as they got the IRS and Congress."
But our hypothetical businessman, while a citizen, was born overseas, and makes the remarks on the phone to his brother in Jordan.
In a post-PATRIOT world where the President makes wisecracks about unmanned "Reaper" hunter-killer drones and Congress wants to broaden the powers of the government to strip Americans of their very citizenship, might we not run the risk of even bigger law enforcement whoopsies than shooting the neighborhood Deadhead's bandanna-wearing dog?