Facebook and Master Card will join forces to [ profile Master Card customers so banks can push them to spend more ]( http://www.smh.com.au/it-pro/business-it/mastercard-to-mine-facebook-user-data-20141006-10qrqy.html ) . By doing this, Master Card is ratting on its customers. This reinforces the point that using a credit card enables others to take advantage of you. It also interferes with your efforts to limit your spending. Don't be tracked — pay cash.
Ссылка: https://stallman.org/archives/2014-jul-oct.html#10_October_2014_%28Facebook_and_Master_Card_will_join_forces%29