FILE - In this file combo image of two photos taken in the same location; on March 22, 2012, above, an Egyptian couple walks by a mural depicting military ruler Field Marshal Hussein Ta

 

              FILE - In this file combo image of two photos taken in the same location; on March 22, 2012, above, an Egyptian couple walks by a mural depicting military ruler Field Marshal Hussein Ta
FILE - In this file combo image of two photos taken in the same location; on March 22, 2012, above, an Egyptian couple walks by a mural depicting military ruler Field Marshal Hussein Tantawi on the left side of the face and ousted president Mubarak, right side with Arabic that reads, "who assigned you did not die, No for gas export to Israel, the revolution continues", top; a veiled Egyptian woman walks past a wall that was newly whitewashed during a cleanup campaign to erase old murals, in Tahrir Square, Cairo, Egypt, Wednesday, Sept. 19, 2012. Graffiti has been among the most powerful art forms and tools of Egypt's revolution and the turbulent months since, but it also has proven to be its most vulnerable and ephemeral. So a group of artists, photographers and a publisher joined hands to preserve the images. "Wall Talk" _ their newly released, 680-page book _ collects hundreds of photos of graffiti dating from the Jan. 25, 2011 eruption of the revolt against then-President Hosni Mubarak until today.(AP Photo/Nasser Nasser, File)