Tonight on PBS News Weekend, a memorial service in Arizona for Charlie Kirk, the young conservative leader whose assassination earlier this month stunned the nation.

Then a critical threat to humanity, why the planet is drying out at much faster rates than before.

And how a new food die ban is changing what's on West Virginia's dinner plates.

I've started seeing even recently, like at Walmart, that they are offering die-free options,

that they're offering non-GMO and organic options.

We're voting with our dollars every time we go to the grocery store.

Good evening. I'm Ali Rogan. John Yang is away. A massive crowd gathered today in Arizona for the memorial service of Charlie Kirk, the conservative political activist who was gunned down 11 days ago.

Tens of thousands of people are in attendance inside a football stadium with a heavy security presence.

The memorial called Building a Legacy is mixing music and prayer with a call to action.

Among the attendees and speakers are President Trump, Vice President Vance, and many members of the administration.

In the wake of Kirk's assassination, a debate has waged over polarization,

political violence, and the limits of free speech. Colleagues of Kirk's took different tones

in their remarks. We will miss your words of wisdom, your high-pitched laugh. It was kind of awkward.

And the way your voice would always soften when you spoke to Erica and your children.

Eleven days ago, my friend was martyred for using his voice to engage in peaceful dialogue.

Charlie's assassin thought that he could steal and silence his

voice by putting a bullet in his neck. For more on Charlie Kirk's legacy, we turn to Kyle Spencer,

a journalist and the author of a book about the conservative youth movement in the U.S. called

Raising Them Right. Kyle, thank you so much for joining us.

This memorial service is ongoing. We still have yet to hear from several major figures, including

President Trump and Charlie Kirk's widow, Erica. But what is your impression of the memorial

service as it's gone on today? So thank you so much for having me. I'm very glad to be here.

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