An anonymous reader writes: A coalition of rights groups has sent a letter to the U.S. Federal Communications Commission asking for tougher privacy regulations on providers of broadband internet services. The letter was sent by the ACLU, the EFF, Public Citizen, and over 50 other groups. "Critics say broadband providers are already harvesting huge amounts of consumer data for use in targeted advertising, the groups wrote. 'This can create a chilling effect on speech and increase the potential for discriminatory practices derived from data use,' the letter said." FCC Chairman Tom Wheeler has said such firms need to ensure their data is protected, and that consumers should know more about what data is being collected, but he hasn't addressed whether the data should be harvested in the first place. He expects the FCC to review these practices "in the next several months."