Terrorist bombing kills 18 in Iran:
http://www.politicalyard.com/news-story-26321-Bus-bombed-in-Iran-18-dead.html
Iran have covertly and overtly supported terrorist groups for years. Groups that actively bomb cities around the world. I can't help but wonder if this is by some group Iran once supported, much like how we're having to deal with the Taliban (yes, they still exist and we are STILL fighting them in Afghanistan).