Over 100 civil rights, faith, community, and advocacy groups signed a letter sent on Monday urging the Department of Justice to commence a prompt investigation into the NYPD's surveillance of Muslim Americans in New York, New Jersey, Pennsylvania, and Connecticut. In a letter to U.S. Attorney General Eric Holder, the groups summarize some of the gravest reports by the Associated Press of the racial profiling and surveillance of approximately 350 mosques, schools, businesses, and individuals throughout the Northeast between 2005 and 2008, despite no evidence of criminal activity. The reports include the NYPD's use of anti-Muslim propaganda in cadet training and of informants and undercover agents in colleges to collect files containing Muslim American students' personal information.