Again, you are wrong. Let's just look at 2007. To date, there have been 71 terrorist attacks or thwarted plots worldwide. Given the absolute benefit of the doubt, four were perpetrated by citizens (used broadly) of free states. That includes Cho, a South Korean, Miles Cooper, the Brit busted for UK letter bombs, Paul, a resident of Ohio that was busted teaming up with AQ to bomb European tourist resorts and US military bases, and really giving you your argument, a Rikers Island inmate who tried to pay a guard to kill NYC Police Commissioner Kelly. I'm not taking the time to go through every year since a 95% correlation from the current year fits my argument. You can disprove it if you like, but you can't. I'm also not counting Dix, JFK, or Glasgow since the terrorists were of foreign origin from countries with oppressive regimes (save Turkey, but they aren't exactly a beacon of light for democracy).
95% correlation. I'm not conceding a damn thing.