CAIRO, EGYPT - FEBRUARY 04:  A shop in Tahrir Square is spray painted with the word Facebook after the government shut off internet access on February 4, 2011 in Cairo, Egypt. Anti-government protesters have called today 'The day of departure'. Thousands have again gathered in Tahrir Square calling for Egyptian President Hosni Mubarak to step down.  (Photo by Peter Macdiarmid/Getty Images)