NO LAW ABRIDGING POLITICAL SPEECH

U.S. Constitution First Amendment: "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances."
They were talking about political speech, so it is OK to regulate pornography or misleading commercial advertisements.

See http://en.wikipedia.org/wiki/Citizens_United_v._Federal_Election_Commission "One issue in particular that likely contributed to the Court's desire to have the case reargued was the statement by then-Deputy Solicitor General Malcolm L. Stewart, representing the FEC, that the government would have the power to ban books, if those books constituted express advocacy and were published by a corporation or union."

The position of the Obama administration is the government has the right to censure and burn books. That the government allows newspapers to write editorials and endorse candidates, but that the government could withdraw that privilege. The government could make it criminal for a newspaper to write editorials or for endorsing candidates.