Originally Posted by The Batlord

That's the thing with terrorism. It is indeed a concept used more by extremist Muslim groups. There are Christian groups that fit the bill, and I'm sure by other religions that don't have the same newsworthy status, but Muslim religious extremists don't really have a serious analogue besides the IRA that I know of. It's a term that's used to describe groups like Al Qaeda and Hamas because governments don't really have any polite way of saying that they're not using it specifically to describe Al Qaeda and Hamas.