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.
Water bears, a.k.a. tardigrades, can withstand boiling, freezing and the vacuum of space. Biologist Bob Goldstein, of University of North Carolina, Chapel Hill, studies these millimeter-long creatures to try to understand how organisms develop.
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.
The last portion of the Dick Henderson Memorial Bridge, which once connected the West Virginia towns of Nitro and St. Albans, was demolished this morning. Hundreds of people gathered to view the controlled explosion Friday morning.