All Things Considered

Comcast, the Philadelphia based cable giant, announced a major deal late Tuesday afternoon. It will buy the 49 percent stake of NBCUniversal that it did not already own for $16.7 billion. General Electric is the seller and will also be selling some prized real estate as part of the deal.

Kirk Siegler talks to Melissa Block for an update on the search for former Los Angeles Police Department officer Christopher Dorner. A man that authorities identified as Dorner was holed up in a cabin near Big Bear Lake, Calif., on Tuesday evening. Hundreds of officers surrounded the home. Dorner is wanted for questioning in three murders and one attempted murder.

One of the long-standing knocks against electric cars is that it can be hard for the machines to hold a charge in cold weather. That's exactly what New York Times reporter John Broder says he found when he took a Tesla Model S on a road trip from Washington, D.C., to Connecticut.

North Korea's latest nuclear weapons test is much more powerful than the previous two, according to estimates made by instruments that measure seismic waves from the blast. It's about the size of the bomb that devastated Hiroshima in World War II.

But it's not so easy to verify the claim that the nuclear explosive has also been miniaturized. That's a critical claim because a small warhead would be essential if the rogue regime chose to threaten the United States with a nuclear-tipped missile.

Big bombs are easier to make, but they aren't all that useful as a threat.