> fire in a crowded theater - threat against life > classified material - potential threat against life > copyrighted material - protected by the constitution

> fire in a crowded theater - threat against life > classified material - potential threat against life > copyrighted material - protected by the constitution elsewhere > death threats - direct threat against life (ability is irrelevant) > corporate espionage - generally falls under contract law Any and all of these may be abused regularly, that doesn't mean that any of them are protected under free speech.