Coronavirus – Dr. Jon LaPook reports on the nation's preparedness for the highly infectious disease rapidly spreading across the world. Fiona Hill  – President Trump's former top adviser on Russia and Europe, whose testimony on Capitol Hill formed a crucial part of the impeachment inquiry, gives her first interview to Lesley Stahl. Elfstedentocht – The traditional Dutch ice-skating race hasn't been held in the Netherlands since 1997 due to climate change. Bill Whitaker reports on an alternative race in the Austrian Alps that's drawing thousands of Dutch skaters.