By KELIN DILLON Power outages on the morning of Monday, Feb. 16, left 4.7 million Mexican homes in the northern Mexican states of Coahuila, Nuevo León, Chihuahua, and Tamaulipas without lights or energy, following freezing temperatures that even led to snowfall in parts of the country.  Outages also afflicted the United States in states bordering Mexico, like Texas, where 2.8