Election workers unseal a ballot box for counting at the end of the second round of a referendum on a disputed Egyptian constitution drafted by Islamist supporters of President Mohammed Morsi at a polling station in Giza, Egypt, on Saturday, Dec. 22, 2012. (AP Photo/Nasser Nasser)

Photo by: Nasser Nasser

Election workers unseal a ballot box for counting at the end of the second round of a referendum on a disputed Egyptian constitution drafted by Islamist supporters of President Mohammed Morsi at a polling station in Giza, Egypt, on Saturday, Dec. 22, 2012. (AP Photo/Nasser Nasser)