'Once in a Generation’ Winter Storm Becomes National Emergency

The "once in a generation" winter storm taking over America is now a national emergency. President Biden is warning people to stay inside. Many cities across the U.S. are experiencing bone-chilling temperature drops. In Cheyenne, Wyoming, temperatures plummeted 32 degrees in just nine minutes. Meanwhile, the airports are packed but many people are going nowhere. Hundreds of flights in and out of Midwestern cities were canceled.