Where do you draw the line on what constitutes journalism? Are politics bloggers journalists? Are bloggers who occasionally talk about politics journalists? Are people who livetweet a news event that they're involved in acting as journalists?

How do you safeguard the political independence of the licensing of journalists? How do you ensure that a future government doesn't abuse the licensing regulations to suppress political criticism?

In the US, how do you reconcile this with the first amendment? How can you justify silencing people because they lack the 'correct' qualifications? If the only restriction is on the title 'journalist', what stops people from calling themselves a blogger while doing exactly the same things that a journalist does?