Three people are dead and at least 9 more are injured following catastrophic collapse of a hangar under construction near Boise airport. Plus, social media CEOs testify in heated Senate hearing on child exploitation. Also, the U.S. is now preparing a campaign of military strikes in response to the drone attack that killed three Americans. And, “Pineapple Express” bringing heavy rains & strong winds to the West Coast – Al Roker is tracking it all.