My next guest really needs almost no introduction. He's former vice president of the United States. He's one of the most well-known communicators of the risks of climate change. He shared the 2007 Nobel Peace Prize for those efforts. I'm guessing a lot of you have read his book, "An Inconvenient Truth," or you've seen the movie.
During a ceremony in the Roosevelt Room of the White House, John Brennan was sworn in as the director of the Central Intelligence Office by Vice President Joe Biden.
According to the White House, Brennan took his oath by putting his hand "on an original draft of the Constitution, dating from 1787, which has George Washington's personal handwriting and annotations on it."
The AP reports that with Brennan, President Obama's national security team is set for a second term.