Tonight on PBS News Weekend from Inside Gaza, an aid worker on what's next now that famine has been officially declared and Israel is poised to intensify the war.

Then the future of voting by mail as President Trump calls the practice corrupt and vows to end it.

And the land of fire and ice.

Scientists are flocking to Iceland to see whether melting glaciers could mean more intense earthquakes and volcanic eruptions.

Iceland is essentially one of the best places in the world to study this. It's a natural laboratory because we have both volcanism and glaciers.

Good evening. I'm John Yang. It's been another deadly day in Gaza.

Officials there say at least 33 people have been killed by Israeli strikes and shootings.

Among them were Palestinians who were sheltering intense and who were seeking scarce food.

It comes a day after a UN-backed group that monitors food crises declared that a half million Palestinians living in the Gaza City area

are in the grips of a potentially life-threatening man-made famine.

What's more, the group, the Integrated Food Security Phase Classification,

or IPC, projects that by the end of September, famine will spread to much of the rest of Gaza.

Earlier, I spoke with Chris McIntosh, Oxfam's humanitarian response advisor in Gaza. He's in Gaza City.

Right now in Gaza, what we're seeing is exactly what we were predicting for months, ever since the imposition of the blockade at the beginning of March.

And in that time, very few trucks have gotten in, very limited amounts of food.

So what we're seeing is people that are gaunt,

people that are drawn in the face, and they're boning

because they haven't eaten, because they're fundamentally malnourished.

They're not getting enough food.

They're not getting the right amounts of food.

And this is on top of the devastating bombing

that's happening on a daily basis here in the

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