"“This is part of a larger picture,” University of Washington cyberlaw expert Ryan Calo told me in an email. “Google scans all Gmail for child porn, but claims it will not scan for other criminal activity, implying it could. Facebook, in partnership with the University of Washington’s School of Social Work, uses a mixture of technology and people to look for suicide risks.” Calo added: “What I am worried about is the possibility that the government, or companies working on its behalf, will begin to scan all traffic for unlawful content and then hide behind a kind of exception to the warrant clause that says you have no reasonable expectation of privacy in illegal contraband.”"
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.