Tonight on PBS News Weekend, President Trump declares Venezuelan airspace closed,

escalating what the administration calls its war on drug cartels.

Then the Americans who have full-time jobs but can't afford a place to live. And we shine a light on a little known piece of American history,

the women lighthouse keep the shoreline beacons illuminated for generations.

These women are, you know, remarkable for their strengths, I think.

Most of them didn't think what they were doing as remarkable or interesting or strange.

They did their jobs.

They did them well.

Good evening.

I'm John Yang.

After weeks of escalating tensions, President Trump increased pressure on Venezuela today by declaring that the nation's airspace should be considered closed, even though he doesn't have the legal authority to close it. With a substantial U.S. military buildup in the region, today's announcement fuels speculation about what's next.

Earlier this week, Mr. Trump said his war on drug smuggling would soon enter a new phase.

In a recent week, you've been working to deter Venezuelan drug traffickers, of which there are many,

and we'll be starting to stop them by land also.

The land is easier, but that's going to start very soon.

We'd warn them, stop sending poison to our country.

Since September, U.S. forces have struck nearly two dozen boats

alleged to be carrying drugs in the Caribbean and the Eastern Pacific,

killing an estimated 80 people.

Venezuelan president Nicolas Maduro says his country will defend itself against any foreign threat.

Overnight in Ukraine, Russia carried out a deadly barrage of drone and missile attacks.

At least three people were killed in and around the country's capital city.

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