Tonight on PBS News weekend.

In Gaza, a tipping point.

As deaths from hunger rise and global pressure builds, Israel announces it will begin air drops

of humanitarian aid tonight.

Then, a big birthday and a big moment for the Postal Service, 250 years old, and now navigating

far more than snow, rain, heat, and gloom of night.

And the global debut of a unique boy band featuring two North Korean defectors.

I did think that it would be fascinating to have North Korean defectors trying out something in K-pop.

Because, you know, who doesn't love the story of someone from a humble background chasing their dreams?

The Good evening. I'm Lisa Desjardin. John Yang is away.

A pivotal moment for lives and the conflict in the Middle East as deaths from hunger rise in Gaza. Today, the Israeli military announced it will begin air drops of aid

and will open more humanitarian corridors to bring in food.

But the UN and aid groups have criticized air drops as inadequate and dangerous.

The Gaza Health Ministry reported that in the last day,

five people died of malnutrition and starvation, including a baby girl.

She's one of 85 children to die of malnutrition over the last three weeks, the ministry said.

Death also came from above.

At least 42 people in Gaza were killed by gunfire and airstrikes, according to Gaza health officials.

Half were shot while waiting for aid.

Earlier today, I spoke with a leading aid worker who is in Gaza.

Rachel Cummings is with Save the Children.

I began by asking what she sees.

...