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PBS News Weekend, from railroad tracks to drawbridges, how extreme heat is affecting the way Americans get from place to place.

Then, how U.S. officials are fighting foreign propaganda on social media.

And an investigation uncovers abuse and mistreatment at some youth residential treatment centers.

My group home experience is something I still carry with me to this day.

My body is coveted scars for some of those fights. Good evening. I'm John Yang.

I'm John Yang. Death and destruction in southern Gaza today.

Palestinian officials say a targeted Israeli air strike killed at least 90 people.

That would make it one of the deadliest attacks of the war.

Israel says the target was Hamas military chief Mohammed Dif,

thought to be the chief architect of the October 7th attacks.

Hamas says he wasn't in the area at the time of the strike.

Israeli officials don't deny that it took place

in a part of Han Yunus that was designated as a safe place

where displaced Palestinians were living in tents.

And this war, this is enough.

There is no safe zone in Gaza.

And this war, have mercy on us and our children.

We are getting killed every minute.

In addition to the dead, hundreds of others were wounded.

Hamas says the attack is proof that Israel isn't interested in a ceasefire agreement.

President Biden was again working to show up support today,

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