The programs that have been discussed over the last couple days in the press are secret in the sense that they are classified but they are not secret in the sense that when it comes to phone calls every member of Congress has been briefed on this program. With respect to all these programs the relevant intelligence committees are fully briefed on these programs. These are programs that have been authorized by broad bipartisan majorities repeatedly since 2006.

The greatest threat to U.S. and global security is no longer a nuclear exchange between nations, but nuclear terrorism by violent extremists and nuclear proliferation to an increasing number of states.

Of course, there is no question that Libya - and the world - will be better off with Gaddafi out of power. I, along with many other world leaders, have embraced that goal, and will actively pursue it through non-military means. But broadening our military mission to include regime change would be a mistake.

Whether our forebears were strangers who crossed the Atlantic or the Pacific or the Rio Grande, we are here only because this country welcomed them in and taught them that to be an American is about something more than what we look like, or what our last names are, or how we worship.

I think the Turks' willingness to take seriously action on the borders to stop the flow of foreign fighters joining ISIL is significant.

Affirmative action is not going to be the long-term solution to the problems of race in America, because, frankly, if you've got 50 percent of African-American or Latino kids dropping out of high school, it doesn't really matter what you do in terms of affirmative action. Those kids aren't going to college.

And Joe Biden, thank you for being the best Vice President I could ever hope for.