Whether the sale is in a store or at a gun show, all Federal Firearm Licensee sales require them, no matter the site.

And that 30 states require them for private sales, including family transfers.

The "only 40%" claim is pure bullshit, from a study conducted a decade before they were required Federally.

In the meantime FWIW, the P Stone Nation in Englewood, Latin Kings in Pilsen, et. al aren't getting their guns from a gun store or an Indiana gun show.

So what if it was? The same thing that was wrong with James O'Keefe. Kuric claimed that it was a "balanced documentary" She lied, and is an unethical journalist. Unethical and dishonest journalism has no place in a free country.
None of the gangs in Chicago are getting IL ownership licenses aka FOIDs or buying them in licensed gun stores.
https://ethicsalarms.com/2016/05/27/katie-couric-and-the-anti-gun-documentary-not-just-vanishing-journalism-ethics-but-vanishing-consensus-that-journalism-has-any-obligation-to-be-ethical/

Turns out it was just some clever editing. Or at least the 'gotcha' portion was.


http://www.theguardian.com/us-news/2016/may/31/katie-couric-apology-misleading-edit-under-the-gun

“If there are no background checks for gun purchasers, how do you prevent felons or terrorists from purchasing a gun?” Couric asks.

In the film, that question is followed by silence and footage of the gun rights advocates looking uncomfortable.

But the gun rights advocates made their own audio recordings of the interview with Couric. In that audio version, several members immediately respond to Couric’s question. The way the documentary edited out those responses seemed designed to make the gun owners look “stupid”, Van Cleave told the Guardian.

The edit was widely criticized by other media outlets, including the Washington Post and National Public Radio.