Apparently New York prosecutors are issuing subpoenas for the Twitter accounts of Occupy Wall Street protestors. Although this is generally outside the scope of this blog, it is interesting to note the new role of the Internet in legal proceedings. It appears that prosecutors are looking towards the tweets as evidence of knowledge of the illegality of the protestor's actions.
The protester mentions in the article that all of his tweets are public, and still posted. He suggests that this negates the need for a subpoena. However, courts have previously held that publicly available information that tends to suggest the possible existence of private information is discoverable in civil cases.