- Costco membership scanners coming to clubs in sharing crackdownAxios
- Membership required: Costco to scan member cards, check ID at all locationsUSA TODAY
- Costco members might see card scanners when they next visitFox Business
- Costco is cracking down on membership moochersCNN
- Costco rolls out a big new shakeup to its memberships in CaliforniaSFGATE