Less Lethal, Lost Vegas Underground, Trash Talk

If civil unrest comes to America, law enforcement will be ready with new, so-called "less lethal" weapons. But are these weapons really safe and effective? Ex-CIA officer Mike Baker puts the weapons -- Tasers, sonic sound and PepperBalls -- to the test. Next, we go underneath the city of Las Vegas where a vast network of storm drain tunnels are inhabited by hundreds of people who have fallen through the cracks of society. Finally, in San Francisco we investigate internet rumors that recycling is really a hoax.