Nearly two years ago, a bitterly divided Supreme Court ruled that the American government could not ban political spending by corporations and labor unions during electoral campaigns. The case, Citizens United v. Federal Election Commission, overruled important precedents about the First Amendment rights of corporations and dramatically altered the way campaigns are conducted. 

Floyd Abrams, a visiting professor of First Amendment Law at the Columbia Graduate School of Journalism, will give his legal perspective on Bradley Manning, Julian Assange and Wikileaks.

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Floyd Abrams, visiting professor in first amendment law at Columbia University, John Walsh, libel lawyer on Wall Street, Catharine MacKinnon, lawyer, academic and anti-pornography campaigner, and Judith Miller, former New York Times journalist, debate the extent of free speech in America.