The University of Chicago law professor is a former dean of that law school and provost of the university. He has written about government secrecy and criticized the makeup of the Foreign Intelligence Surveillance Court in a July opinion piece. He has written books that include: “Top Secret: When Our Government Keeps Us in the Dark” and “War and Liberty: An American Dilemma.” Stone hired Obama at the University of Chicago law school and advised his 2008 campaign. After the Edward Snowden leaks, Stone described Obama as a “rational civil libertarian” rather than a passionate one.