"As for the potential of a free-speech argument, Reuters spoke with cryptology expert Riana Pfefferkorn, a fellow at Stanford University's Center for Internet and Society, who said Apple could assert the FBI's request for a software workaround as tantamount to unlawful compelled speech. Since Apple contends such forensics tools do not currently exist, it would be forced to write computer code specifically for that purpose, Pfefferkorn said."
The Center for Internet and Society at Stanford Law School is a leader in the study of the law and policy around the Internet and other emerging technologies.