The State Department issues a worldwide travel alert and the temporary closure of 19 embassies and consulates. On Chicago Tonight at 7:00 pm, we look at the latest terror threats with Robert Pape, Professor of Political Science at the University of Chicago. Read more about key attacks on western targets made by Al-Qaeda in the Arabian Peninsula and read the full list of suicide attacks in Yemen from 2007-2012, courtesy of the U of C's Chicago Project on Security and Terrorism.

View a map of the closures below.

Hope Holmberg contributed to this report.