Excerpt:
Ten U.S. Muslim organizations threatened this week to cease working with the FBI, citing "McCarthy-era tactics" by the agency, including efforts to covertly infiltrate California mosques.
The groups claim the FBI has sent undercover agents posing as worshippers into mosques, pressured Muslims to become informants, labeled civil rights advocates as criminals and spread misinformation.
The FBI declined to comment on specific allegations but called the proposed move unproductive.
"Limiting honest dialogue, especially when complex issues are on the table, is generally not an effective advocacy strategy," spokesman John Miller said in a statement. "The FBI has continued our outreach efforts, across the board, with a number of concerned groups and where we agree -- or disagree -- most have concluded the best results are achieved through continued conversation. We believe that, too."