Date: Tue March 19, 2013 Show: Ross and Burbank Seven Marine Corps troops were killed and several others were injured in an explosion during a training exercise in Nevada. We talk to CBS News military analyst Jeff McCausland. // A pregnant woman is wanted in burglary case in North Bend. Worst husband ever? // Supreme Court justices Sonya Sotomayor Antonin Scalia are facing off over a 2004 Arizona law that requires citizens to offer proof of citizenship before they can register. // Forty percent of the yearly drunk driving arrests in Sammamish involve people under the age of 21, and many of the drivers are under 18. And nobody's sure why the numbers are uncommonly high.