Imagine if the police knew exactly what you do online: All the porn sites you scan secretly, the vitriolic comments you leave on blogs, the number of hours you spend playing Farmville.

In Denmark, police have recommended to Parliament that it create laws that make it impossible for citizens to surf anonymously. According to Danish-language blog Computerworld Denmark, the proposal is intended to help investigate terrorism.

In the proposal, locations providing open Internet, like cafes and libraries, would have to confirm a user's identity, with some form of official ID, before letting them get online. Companies may also have to register and verify users' identities before providing access, as well as retain records of user logs.

Danish law already requires that ISPs store user data for at least a year, as an anti-terrorism measure. The proposal suggests that with such information, police would be able to see who exactly is on the network, where they go, and who they talk to.

Such a move would have serious privacy implications. But another problematic facet of the proposal is in the nature of online identity itself. 4Chan founder Christopher Poole recently defended web anonymity against those, including Facebook, who believe real-world identity and web identity should be one.

"Anonymity is authenticity," said Poole. "It allows you to share in an unvarnished, unfiltered, raw and real way. We believe in content over creator."