After a costly cyber attack on Sony Pictures, a look at how the U.S. plans to confront North Korea and the rise of cyber terrorism; how Obama was able to normalize U.S. relations with Cuba and what it will mean for both countries; and will the 2016 presidential election feature, Jeb Bush and Hillary Clinton of America's political dynasties?

On the Webcast Extra: It's never too early to talk presidential politics and the 2016 election. Potential candidates like Hillary Clinton, Chris Christie and Jeb Bush have been active on the 2014 campaign trail on behalf of Congressional candidates. Will the early testing of the waters pay off at the polls in an election that's two years away?

On the Webcast Extra, with less than 2 weeks to Election Day top campaign surrogates like Hillary Clinton, Sarah Palin and Michelle Obama are hitting the trail. What's the motivation for these campaign appearances? Some like Sen. Rand Paul, who has a large libertarian following, could be broadening his appeal with Republican voters, says CNBC's John Harwood.