PBS Newshour: Congress Grills Medicare Head As Some Insurance Holders Get Cancellation Notices

Medicare chief Marilyn Tavenner faced questions on Capitol Hill about the rocky rollout of HealthCare.gov and the administration's proposed timeline for fixes. Kwame Holman reports. Jonathan Gruber of MIT and industry consultant Robert Laszewski join Gwen Ifill for more on Americans whose insurance policies are being canceled.