jenna: breaking news on the terror attack outside the u.s. embassy in turkey's capital. the state department warning americans to stay away from diplomatic offices in turkey, this after a homicide bombing inside a security checkpoint at an entrance to the embassy. a security guard was killed, the well-known female television journalist was wounded in this. this is an area that is under heavy security. embassies for france and germany also located nearby. there are reports this is the work to of a domestic group, a marxist extremist group inside the country, so we want to talk about that with rick runnell, also joining us the director for the or washington institute -- the washington institute turkish research program. we had this initial report about a domestic group being responsible, but we also know we have to be cautious with initial