I'm Margaret Brennan in Washington, and this week on Face the Nation, as a paralyzing winter storm barrels through a vast part of the country, the standoff between federal law enforcement agencies and the Minneapolis community explodes following yet another deadly shooting of a protester.

It's happened again.

Minneapolis is the scene of the violent death of a protester at the hands of federal immigration agents.

In this case, 37-year-old Alex Preti was shot and killed Saturday morning outside a donut shop amid what federal officials say was an unrelated immigration operation,

led by Customs and Border Protection

agents. Interpretations of the extensive videos of the shooting are mixed, and much like

the shooting death of Renee Good in Minneapolis just over two weeks ago, federal and state

officials are at odds over what happened and why and who should investigate. They killed a man, created chaos, pushed down protesters through gas indiscriminately,

and then left the scene and then we're left to clean up.

This looks like a situation where an individual wanted to do maximum damage and massacre lovers.

We'll have a report from the scene and talk exclusively to Minneapolis police chief Brian O'Hara,

then turned to the bigger picture as Senate Democrats threatened to block funding for ICE and DHS agencies while the public increasingly is wary of ICE actions and the subsequent pushback.

House Majority Leader Steve Scalise, Maine independent Senator Angus King,

whose home state is the site of ICE's new deportation operation called Petch of the Day.

We'll also talk with the outgoing Canadian ambassador to the U.S. Kirsten Hillman about the growing

divide between the U.S. and our neighbors to the north.

It's all just ahead to face the nation. As we come on the air, over 200 million Americans in 35 states from New Mexico to Maine are dealing with or preparing for the

massive winter storm that is now moving across the country. There are already at least 700,000

people without power. Thousands of flights have either been canceled or are delayed, and there

is a cold front moving in behind that storm, which will likely make

the situation facing most Americans as this workweek begins even more treacherous.

We turn now to the volatile situation of Minneapolis and the killing of Alex Prettie, a 37-year-old

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