WOODBURY - The Muslim American Civil Liberties Coalition and other groups presented a study today on the impact of the NYPD's Muslim surveillance program.

The Associated Press uncovered reports in 2011 that showed the NYPD documented businesses, places of worship and other Muslim-related locations. The reports showed that the spying took place after the Sept. 11 attacks.

The study presented today documents the negative impact the surveillance has had on the lives of Muslim Americans.

Many Muslim Americans say they want to work with law enforcement, but the surveillance program has had a chilling effect and helped build a culture of fear.

In the past, NYPD officials have defended the surveillance program, saying they were within the law.

Calls to the NYPD for comment have gone unreturned.