Tonight on PBS News Weekend, a deadly wave of Russian strikes on Ukraine's capital city,

Kiev, as Volody Mayor Zelensky heads to Florida for talks with President Trump.

Then, the connection between a company in Landlock, Nebraska, and efforts to combat plastic pollution in oceans.

And how scientists in Yellowstone National Park are using AI to try to decode the language of wolves.

No.

Not only can we hear them here and record their howling 24-7, 365 days a year, but we often can link behaviors of wolves by observing them when they are vocalizing.

What is the cause and effect of howling? Good evening. I'm John Yang.

Russia attacked Ukraine's capital city Kiev overnight with a barrage of ballistic missiles and drones.

It came just a day before President Trump and Ukrainian leader, Volody Mersol Zelensky are to meet in Florida to talk about prospects for peace.

On his way to the U.S., Zelensky met with Canadian Prime Minister Mark Carney in Halifax.

He said Russia's attack was revealing.

This attack is, again, Russia's answer on our peace efforts.

And it's really the show that Putin doesn't want peace and we want peace.

In Kyiv, residents and first responders assess the damage from the attacks.

Several apartment buildings and key energy infrastructure facilities were hit. At least one person was killed and nearly 30 others were injured.

A quick moving winter storm swept across the Great Lakes and Northeast overnight,

dumping snow and ice that snarled post-Christmas travel in the air and on the roads.

More than 1,500 flights have been canceled since last night, and thousands more delayed.

The National Weather Service warned people to stay off the roads.

The storm had largely wound down by this afternoon.

California has dropped its lawsuit against the Trump administration over the cancellation of more than $4 billion in federal grants for a high-speed rail project.

Plans for a high-speed rail train between San Francisco and Los Angeles have been in the works for

...