Al Jazeera's Rawya Rageh says protesters have gathered in Tahrir Square and in other parts of the country. They are angry with the verdict in the Mubarak trial, and feel that the results of the revolution are at risk of getting reversed. Many of the activists taking to the streets are questioning the legitimacy of the June 16-17 presidential runoff, calling for one of the contenders, former Ahmed Shafik, to be disqualified under a law banning former regime officials from office.