WASHINGTON D.C.- The gun control group Giffords called for public pressure on Visa, Mastercard, and American Express to flag “suspicious purchases” of guns and ammo in a tweet sent out on Sunday. “The shooters in at least 5 mass shootings have stockpiled guns & ammo using credit cards and killed 145 people,” The tweet stated.… Continue reading Giffords Tweet Urges Public Pressure On Credit Card Companies To Block “Suspicious Purchases” of Guns And Ammo