Portion Shutdown News Today

Protection agency got a personal greeting from the vice president, joe biden. while the portion shutdown means busy days with lot of backed up work for federal employees it means vacationing americans are getting much needed time-off at the countrys national parks, monuments and museums. cnns rene marsh is joining us the national air and space museums, one of my favorites. big crowds? whats go on? >> reporter: well, i can tell you, wolf, the crowds about what you would see on a typical thursday....