Walmart’s website opens with photos of mothers and children shopping, weekly specials on daily necessities, and — for those who click on the “Our Company” link and dig a little deeper — an unabashed admission Walmart has been videoing every gun sale in its stores. The “Our Company” tab shifts the website to Walmart’s corporate page, from whence one can peruse various pages, one of which sets forth Walmart’s policy for “Responsible Firearm Sales.” On the “Responsible Firearm Sales” page, Walmart says, in part: In 2018, we made the decision to raise the minimum age to purchase firearms and ammunition...