Dean Morgan

As millions of Americans hunker down for the winter storm, at least 23 states and Washington, D.C., have declared states of emergency.

This week on "Face the Nation with Margaret Brennan," Minneapolis Police Chief Brian O'Hara, House Majority Leader Steve Scalise and Sen. Angus King discuss Saturday's fatal Border Patrol shooting. Plus, Canadian Ambassador to the U.S. Kirsten Hillman joins.

CBS News celebrates the life and legacy of Hollywood legend Rob Reiner in a one-hour special featuring emotional new interviews with Kathy Bates, Annette Bening, Albert Brooks, Michael Douglas, Jerry O’Connell, Mandy Patinkin and Kiefer Sutherland. Plus, hear from Reiner in his own words as CBS News draws on its vast archive of interviews with the iconic filmmaker through the years.

Flight cancellations are continuing to mount as the U.S. is being hit with dangerous winter weather​ from a storm moving across the country.

Details are emerging about the fatal shooting of an ICU nurse in Minneapolis by federal agents on Saturday. The shooting was caught on video by several eyewitnesses, but local, state and federal officials are providing starkly different accounts of what happened. Lana Zak has more.