Explore: The First Amendment, freedom of the press, sedition, the Founding Fathers, the Bill of Rights, political dissent, the role of the press, early American history.

The First Amendment guarantees freedom of speech, a free press, freedom of religion, the right to assembly and the right to petition. Actor Martin Sheen narrates this story of the political struggles involved in establishing the First Amendment and the challenges it faced in the decades that followed.

Explore: The Berlin Wall, communism, the Soviet blockade, the Iron Curtain, freedom of the press, the Cold War, censorship, propaganda, Post-World War II European history, communication technologies, the first draft of history, the power of the press.

The Berlin Wall was the only wall in history built to keep a nation's people locked inside. For 28 years, it stood as grim testimony to an epic confrontation between open and closed societies. Journalists Tom Brokaw, Daniel Schorr, Charles Wheeler, John Simpson, Erdmute-Reiss Geherendt and Adam Kellett-Long explain how news and information helped topple one of the world's biggest symbols of oppression.

Explore: Journalism, the Internet, digital news, blogs, citizen journalism, freedom of the press, the speed of news, the news cycle, communication technologies.

The intersection of technology and media has changed the way news is produced, consumed and shared in today's digital world. Early blogger Dan Gillmor, historian Todd Stephen Burroughs, educator Nora Paul and "NBC Nightly News" anchor Brian Williams discuss the rise of digital technology and its impact on news.

Explore: Media accuracy, journalism, media ethics, freedom of the press, breaking news, reporting challenges, errors, corrections, the role of the press, deadlines.

Media mistakes often occur because journalists fail to remember the adage that while it's good to be first, it's better to be accurate. Veteran journalists Gordon Peterson and Clarence Page, and Richard Jewell, a victim of inaccurate reporting, discuss the most common reporting mistakes and how they happen.

Explore: Journalism, apps, the Internet, digital news, blogs, citizen journalism, freedom of the press, the speed of news, the news cycle, communication technologies.

For consumers who want to quickly get news that matches their interests, "apps" can be better than surfing the Web. This video describes how apps have liberated content from desktop PCs and changed the way we get our news. Journalists and educators Rob Pegararo, Jan Schaffer and Jody Brannon discuss the news app revolution.

Explore: Civil rights, free press, First Amendment, watchdog press, media manipulation, media bias, U.S. history, segregation, Martin Luther King Jr., protest.

Civil rights leaders understood the value of having a media spotlight focused on their cause and effectively used the First Amendment and the press to expose the injustices of racial segregation. Reporters who covered the civil rights struggle — Chet Huntley, Gene Roberts and Claude Sitton — give up close and personal accounts of one of the greatest human rights issues of the 20th century.

Explore: Anonymous sources, the role of a journalist, media ethics, reporting challenges, media credibility, journalism, freedom of the press.

Critics say anonymous sources undermine credibility. Defenders say whistle-blowers would not come forward without the protection of anonymity. Journalists Ken Paulson, Ben Bradlee, Michael Isikoff, Evan Thomas and Geneva Overholser take a critical look at the use of anonymous sources and the impact they have on the public's perception of the news media.

Explore: Watergate, Richard Nixon, U.S. history, the presidency, politics, the role of the press in politics, freedom of the press, anonymous sources, the press as watchdog, investigative reporting.

A break-in at the Democratic National Committee's headquarters at Washington's Watergate hotel and office complex in 1972 leads to congressional hearings that result in the historic resignation of President Richard M. Nixon. Original news footage from reporters George Herman, Garrick Utley, Walter Cronkite, Roger Mudd, John Chancellor, Harry Reasoner and Tom Brokaw retells the story that brought down a presidency.