Colorado avalanche engulfs highway

An extreme avalanche danger warning is in effect for parts of Colorado Friday morning. The state has seen a record number of avalanches, including one on Thursday that was as wide as a football field measured from goal line to goal line. They are creating treacherous driving conditions. David Begnaud reports. Watch CBS This Morning HERE: Download the CBS News app on iOS HERE: Download the CBS News app on Android HERE: Like CBS This M