"For at least a year before the 2004 Republican National Convention, teams of undercover New York City police officers traveled to cities across the country, Canada and Europe to conduct covert observations of people who planned to protest at the convention, according to police records and interviews. From Albuquerque to Montreal, San Francisco to Miami, undercover New York police officers attended meetings of political groups, posing as sympathizers or fellow activists, the records show. They made friends, shared meals, swapped e-mail messages and then filed daily reports with the department’s Intelligence Division. Other investigators mined Internet sites and chat rooms."