Visa, Mastercard, Discover pause work on code that would track gun
Credit Card Companies 'Pause' Implementation of New Gun Purchase
Visa, Mastercard Pause Work on Code Aimed at Tracking Gun
Visa, Mastercard, Discover Drop Plans to Track Gun Purchases
Republican Attorney Generals Don't Want Visa, Mastercard and AmEx
Visa joins Mastercard in AmEx in categorizing gun shop sales : NPR
We Took A Deep Dive Into Weapons — Here's What We Found
Banks To Pause Implementation Of New Merchant Code For Firearms
Visa, Mastercard, Discover pause work on code that would track gun