Well, we can all rest easy, now that the Department of Homeland Security has developed a handy system of graphic illustrations outlining what to do in case of a terrorist attack, which you can see at www.ready.gov. For instance, take the picture below.
The Web site's caption: "Face away from windows and glass. Move away from exterior walls."
But wait-that's not the Web site of the week. Go to http://houstonjusticenotwar.org/articles/terrorist_attack/, where you can see what seem to be much more accurate, and entertaining, descriptions of the various pictures' instructions. For the same photo above, here's the caption: "If you've become a radiation mutant with a deformed hand, remember to close the window. No one wants to see that shit."
Enjoy. The life you save may be your own.