Flames engulf part of the Interior Ministry complex in Cairo on Tuesday, March 22, 2011. An Egyptian security official said police protesting in front of ministry set fire to a part of the downtown complex that houses the agency's personnel department. (AP Photo/Mohammed Abu Zaid)

Photo by: Mohammed Abu Zaid

Flames engulf part of the Interior Ministry complex in Cairo on Tuesday, March 22, 2011. An Egyptian security official said police protesting in front of ministry set fire to a part of the downtown complex that houses the agency's personnel department. (AP Photo/Mohammed Abu Zaid)