Now Playing: 03-26-12 Marketplace

Today the U.S. Supreme Court opened three days or oral arguments over the fate of President Obama's health care law. Federal Reserve Chairman Ben Bernanke says the job market is still weak despite the recent new hires. This year, movie streaming over the Internet is expected to overtake traditional home viewing of films. Behavioral economist Sendhil Mullainathan explains the concept of "reciprocity," and how businesses are profiting from it. And we kick off our new series, Robots Ate My Job, about what technology is doing to the future of jobs in America.