FCC "strike force" losing war against robocalls?
More than 29 billion robocalls bombarded Americans last year. The telecom industry claims it's working to block them, but that its efforts are complicated both by legal hurdles and the difficulty of tracing where the calls come from. In a rare interview, the FCC chairman Ajit Pai says tackling robocall scams are a top priority but that the issue is "exceptionally complicated." Anna Werner reports.