A French government source told CNN that authorities believe other terrorist sleeper cells have been activated and could strike at any time. A rally in Paris today is expected to draw nearly a million people and will include many world leaders. Security is incredibly tight as an estimated 50,000 police and military personnel have been deployed USA Today: Authorities tightened security in France's capital city Saturday amid fears of new attacks after a series of deadly terror assaults rattled the nation. The French government maintained its terror alert system at the highest level in Paris, and a heavy security presence was easily visible on city streets as well as at houses of worship, landmarks and government buildings. "There is risk (of another attack)," said French Interior Minister Bernard Cazeneuve. "We are creating a defense zone, to deploy a reaction force should it become necessary." French law enforcement officers have been told to...(Read Full Post)