George Stephanopoulos talks State of the Union addresses past and future, Pope Benedict XVI steps down and Harvard fails to produce the best cheaters.

Ed Whitacre discusses GM's revival, the Obama administration is questioned over its legal basis for drone strikes and the British government addresses gay marriage.

Education reformer Michelle Rhee discusses her book, "Radical", The Super Bowl suffers a power failure and Chinese hackers infiltrate the New York Times.

Al Gore talks climate, democracy, and his book, "The Future: Six Drivers of Global Change."

Bob Costas discusses the American cultures of guns and football, women gain access to front-line combat and North Korea promises to "settle accounts" with the United States.

Missy Cummings shares the many applications of drones, Paul Ryan reviews President Obama's inaugural speech and Israel is no friend to Benjamin Netanyahu.

President Obama is sworn in for a second term.

Lena Dunham recounts the Golden Globes, Lance Armstrong admits to doping, the NRA goes after President Obama's children and Bob Schieffer remembers his first inauguration.

Bob Schieffer prepares for his 13th presidential inauguration, Lance Armstrong opens up to Oprah and Clarence Thomas speaks for the first time in seven years.

Josh Brolin discusses his handsome role in "Gangster Squad", the government considers minting a trillion dollar coin and Al Gore sells Current TV to Al Jazeera.