a representative of the readers. In June 1971 Bagdikian, as the assistant managing editor for national news at the Post, met with Daniel Ellsberg, a military analyst, who passed him 4,000 pages of the Pentagon Papers, excerpts from which were published by The New York Times days earlier and halted by a federal judge. While the Post lawyers and management were opposed, Bagdikian argued strongly in favor of publication of the documents despite pressure from the Nixon administration not to on national security grounds. Bagdikian famously stated: "the (only) way to assert the right to publish is to publish." The first part was published by the Post on June 18, 1971. William Rehnquist phoned Post executive editor Ben Bradlee and threatened him with prosecution if the publication of the documents was not stopped. In a landmark decision, the Supreme Court decided 6–3 that "to exercise prior restraint, the Government must show sufficient evidence that the publication would cause a 'grave and irreparable' danger." Just months after the publication of the Pentagon Papers Bagdikian became an undercover inmate at the Huntingdon State Correctional Institution, a maximum-security prison in Pennsylvania, to expose the harsh prison conditions. With permission from the attorney general of Pennsylvania, he disguised himself as a murderer to observe the prison life without the knowledge of anyone inside the prison. He remained there for six days and his eight-part series on the conditions of the prison were published in the Post from January 29 to February 6, 1972. He reported "widespread racial tension behind bars, outbursts of violence, open 'homosexualism' and an elaborate, yet fragile, code of etiquette." Bagdikian and Post reporter Leon Dash published the series first as a report in 1972 and later as a book (1976). Bagdikian left the Post in August 1972 after clashing with Bradlee "as a conduit of outside and internal complaints." UC Berkeley Bagdikian wrote for the Columbia Journalism Review from 1972 to 1974. He taught at University of California, Berkeley from 1976 until his retirement in 1990. He taught courses such as Introduction to Journalism and Ethics in Journalism. He was the dean of the UC Berkeley Graduate School of Journalism from 1985 to 1988. He was named Professor Emeritus upon departure. Media criticism In an interview with PBS's Frontline Bagdikian stated that while the First Amendment allows newspapers to print anything, especially unpopular things, newspapers have an implied moral obligation