The charts above are from the Public Religion Research Institute . They show that Americans have a definite double standard when it comes to religious violence. When a christian commits violence, most are quick to say he/she wasn't really a christian. But they aren't nearly as forgiving for a muslim committing violence.Evangelical christians have the biggest double standard, but all groups show that same double standard -- including sadly, Democrats and the religiously unaffiliated (groups that should know better).What makes this even crazier is that Americans are far more likely to be harmed or killed by a christian terrorist than a muslim terrorist.