Can We Stop Robocalls?

Last month alone, Americans were bothered by more than 5 billion robocalls -- those unwelcome, computer-automated telemarketing or scam calls that are jangling our phones -- and our nerves -- with growing frequency. Is there any way to win the war on robocalls? And what can Congress do to rein in the scammers? Joining us to explore these questions are Washington Post tech columnist Geoffrey Fowler, University of Maryland computer science professor Raymond Tu and Consumer Reports policy analyst Maureen Mahoney.