Titolo: President Obama Holds Twitter Town Hall Meeting

Descrizione: WASHINGTON - JULY 6: An audience member uses an iPhone to send a tweet during an online Twitter town hall meeting with U.S. President Barack Obama from the East Room of the White House July 6, 2011 in Washington, DC. Obama and Twitter co-founder and Executive Chairman Jack Dorsey held the online discussion to speak about the U.S .debt ceiling crisis. (Photo by Brendan Smialowski/Getty Images)

Crediti immagine: Getty Images - © 2011 Getty Images