This is Brian Lair's Daily Politics Podcast from WNYC Studios.

It's Thursday, June 9th.

I'm Matt Katz, reporter in the WNYC Newsroom, filling in for Brian today.

On Wednesday, after testimony from survivors

and parents of victims of the Uvaldi, Texas shooting, the House voted to raise the minimum

age for the purchase of most semi-automatic rifles to 21 and banned high-capacity ammunition

magazines. The Washington Post called the vote the most aggressive gun control measures

taken up on Capitol Hill in years, with five Republicans joining most Democrats and backing the

legislation, and two Democrats voting no. Now the measures head to the Senate, where Republican

opposition will likely stymie what Democrats are referring to as common-sense gun laws.

But what might common-sense gun laws look like?

And when we're talking about semi-automatic rifles or high-capacity ammunition magazines or body armor,

are we all talking about the same things?

Joining me now to help parse some of these legal and political terms and discuss the latest

on gun control negotiations

in Congress is Jennifer Mascia, newswriter and a founding staffer at The Trace, who previously

covered gun violence at the New York Times. Jennifer, welcome to WNYC. Thanks for having me.

So Jennifer, as I mentioned in the intro, the House passed this minimum age measure and this ban on high-capacity magazine.

So can we break down these two bills first?

Why a minimum age of 21?

Is there any research to support that this is the age when adults can responsibly use guns? Like, why not 25 or, you know,

even older? Why 21?

...