EFF Files Amicus Brief to Defend Free Speech on Social Networks

"Wielding the threat of criminal sanctions to punish the pointed, online criticism of public figures is not only bad policy, it is unconstitutional," said EFF Senior Staff Attorney Matt Zimmerman. "While true threats can and should be opposed, public speech about prominent people must be vigorously protected."

Source:
http://www.eff.org/press/archives/2011/07/29