Joel Rose

In much of the south, it left a coating of ice on roads and trees that made roads dangerous, if not totally impassable.

It also brought down trees and branches and power lines.

That left hundreds of thousands of homes and businesses without power across Tennessee, Louisiana, and Mississippi.

The Federal Aviation Administration moved quickly after the mid-air collision of an Army helicopter and a passenger jet, imposing temporary flight restrictions around Ronald Reagan Washington National Airport.

Now the FAA is making those restrictions permanent.

The agency says that will ensure that helicopters and airplanes no longer share the same airspace around the airport.

reducing the risk of another collision, like the one that killed 67 people in January of last year.

The National Transportation Safety Board plans to hold a meeting next week to detail everything that investigators believe contributed to the deadliest U.S.

aviation disaster in decades.

Joel Rose, NPR News, Washington.

President Trump is threatening to cut off significant funding from cities and states that limit their cooperation with immigration authorities.

This is not the first time the Trump administration has made a threat like this.

Presidents signed an executive order nearly a year ago directing the Departments of Justice and Homeland Security to make a list of sanctuary cities and withhold money from them.

But courts have consistently sided against the administration in almost every case, saying the federal government cannot use federal funding to coerce state and local governments into cooperating with immigration enforcement.

Democratic leaders say they are not intimidated and plan to fight any cuts in court.

Joel Rose, NPR News, Washington.

President Trump is threatening to cut off significant funding from cities and states that limit their cooperation with immigration authorities.

This is not the first time the Trump administration has made a threat like this.

Presidents signed an executive order nearly a year ago directing the Departments of Justice and Homeland Security to make a list of sanctuary cities and withhold money from them.

But courts have consistently sided against the administration in almost every case, saying the federal government cannot use federal funding to coerce state and local governments into cooperating with immigration enforcement.