Hackers broke into a database at Anthem, the nation’s second largest health insurance provider, which contained names, social security numbers, income data and addresses of 80 million people. Judy Woodruff speaks with Mark Bower of Voltage Security about who might…

Following a holiday data breach, representatives from Target will testify before Congress. Earlier this week, Senator Claire McCaskill, D-Mo., and Sen. Jay Rockefeller, D-W.Va., also demanded that Target provide answers about the hack that affected millions of Americans.