Treason, Technology, and Freedom of Expression by TOM W. BELL (Chapman University School of Law/Arizona State Law Journal)
This paper details the scope of the law of treasonous expression, explains why technology threatens to bring that law into conflict with the First Amendment, and suggests a way to safely separate the power to punish treason from our freedoms of expression.
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=936889