Morning Cram

From NPR: How the Supreme Court decides the Defense of Marriage Act could mean changes for how same-sex couples file taxes. But experts say checking off the "married" box on tax forms will be a mixed bag for some gay couples.

From NPR: The U.S. Supreme Court hears arguments today in a case worth billions of dollars to pharmaceutical companies and American consumers. The issue is whether brand name drug manufacturers may pay generic drug manufacturers to keep their cheaper products off the market.

From NPR: At a heavy metal concert five years ago, physicist Jesse Silverberg had a "eureka" moment: The jumping, raucous fans at the show seemed to be moving about like molecules in the air we breathe. So he and friend Matt Bierbaum set out to understand the patterns within mosh pit motion.

From NPR: The first tweet was posted seven years ago. Since then, the social media site has been used as a free speech platform to spread information, report on the Arab Spring and stay connected with millions worldwide. But critics say that as Twitter has grown, it has sometimes compromised its principles.

From NPR: In the aftermath of the Newtown school shooting, there's a raging public debate over placing armed guards in schools. Some say it's impractical, but about a third of American schools already have some kind of armed security. One school police officer in Stockton, Calif., finds the job is part protector, part mentor.

From NPR: Gustave Whitehead, a German immigrant who lived in Bridgeport, Conn., was the first to fly a plane, according to one expert who examined a photo recently unearthed in a Bavarian museum. This claim has reignited a debate among researchers, and a fight with the Smithsonian.