The Justice Department’s disclosure that it had secretly subpoenaed phone records from the Associated Press has prompted a wave of comparisons between President Obama and Richard Nixon. Four decades ago, the Nixon administration attempted to block The New York Times from publishing a secret history of the Vietnam War leaked to the newspaper by whistleblower Daniel Ellsberg. Two days after the Times first published excerpts of what became known as the "Pentagon Papers," the Nixon government asked for and received a Supreme Court injunction against the newspaper, arguing that publication of the documents posed a "grave and immediate danger to the security of the United States." We speak to James Goodale, the general counsel at The New York Times during the Pentagon Papers crackdown. Goodale is a leading legal expert on the First Amendment and has just published a new book, "Fighting for the Press: The Inside Story of the Pentagon Papers and Other Battles." Goodale said he wrote the book in part because of the work of Julian Assange of the whistleblowing website WikiLeaks, and how he is likely being targeted by the U.S. government in an ongoing grand jury probe. "My book is meant to be a clarion call to the journalist community: Wake up! There’s danger out there," Goodale says. "You may not like Assange, but wake up! The First Amendment is really going to be damaged. If Obama goes forward and succeeds, he will have succeeded where Nixon failed."