If it's cold where you are this weekend, you can hug for warmth. Chances are, if you hug, it will be with someone you know. Such is not the case with a woman named Amma. In the last few days, Amma has hugged about 10,000 people. And next week she'll hug several thousand more. A couple years ago, she hugged Weekend America's Krissy Clark in San Francisco.