source : The White House - photo by Sonya N. Hebert) http://www.whitehouse.gov/photos-and-video/photogallery/inauguration Obama, discours d'investiture, 21 janvier 2013 : Inaugural Address 2013.01.21 Transcription sur le site de la Maison Blanche : http://www.whitehouse.gov/the-press-office/2013/01/21/inaugural-address-president-barack-obama...