Cable company Charter Communications Inc. should delay plans to track customers' Internet use because of privacy concerns, two members of Congress said.
Collecting data about Web surfing habits "raises substantial questions" about compliance with privacy law, Reps. Edward Markey (D-Mass.) and Joe Barton (R-Texas) said in a letter to Charter President and Chief Executive Neil Smit.
Charter, which has 2.8 million Internet customers, plans to begin the service as a test project in June with "a couple of hundred" customers in four markets, a spokeswoman for the St. Louis-based company said.
Charter plans to share the data with a Web marketing company.