and roger rosenblatt is back with his latest book. >> woodruff: we return now to president obama was on the road today, defending the affordable care act against its critics and outlining what he sees as its benefits. he noted that a similar law that was signed in massachusetts in 2006 had some bumps along the way but is considered successful now. speaking at boston's at fanueil hall, the president also offered an explanation for why some americans are being dropped from their insurance plans. >> today the affordable care act requires insurance companies to abide by some of the strongest consumer protection this is country has ever known. a true patient's bill of rights. (applause) no more discriminating against kids with preexisting conditions. (cheers and applause) no more dropping your policy when you get sick and need it most. (applause) no more lifetime limits or restricted annual limits. (applause) most plans now have to cover free preventative care like mammograms and birth control. (applause) young people can stay on their parents' plans until they turn 26. all of this is in