Comcast is considering a groundbreaking change to the Internet service provider business model: it wants to give consumers discounts on Internet service in exchange for the rights to sell their browsing data.Some ISPs, like AT&T, already do that, though they're mostly limited to small geographical areas, according to the Washington Post. Comcast's proposal, explained in a letter to the Federal Communications Commission this week, asks the agency to explicitly sanction the practice nationwide.The proposal comes as the FCC is considering how to apply new privacy regulations to Internet service providers. It has already indicated that it won't back down on its desire to classify ISPs as utilities, regulating them with the same strict privacy and neutrality requirements that apply to telecom providers.Comcast, though, says the FCC has no authority to prevent it from selling customer data in exchange for discounted service.