the wife of the slain civil rights leader, medgar evans. >> 100 years after the emancipation proclamationyears after the march on washington, we celebrate the spirit of our ancestors. >> vice president biden was sworn in by supreme court justice sonia sotomayor. >> so help me god. >> so help me god. >> congratulations. ♪ ♪ oh beautiful >> then, james taylor's rendition of "america the beautiful." ♪ then the moment was at hand. the president swore his oath on two bibles. one was abraham lincoln's, the other dr. martin luther king junior's. >> protect and defend -- >> the constitution of the united states. >> the constitution of the united states. >> so help you god. >> so help me god. >> and unlike four years ago, chief justice roberts and the president made it through, using the correct wording. ♪ >> barack h. obama! >> and then came the president's second inaugural address. >> this generation of americans has been tested by crises that steeled our resolve and proved our resilience. a decade of war is now ending. an economic recovery has begun. we must make the hard choices to reduce the