Over at his Practical Nomad blog, longtime privacy activist Edward Hasbrouck (that's his headshot) chronicles the correspondence and events -- starting with AMEX sending letters to cardholders changing its terms of service to allow myriad privacy invasions including robocalls, whether you object or not -- culminating this week in the cancellation of his card.

Hasbrouck has been a leader in challenging intrusive security measures by TSA and other agencies. He is a well-known author of several books on how to travel the world without burning a hole in your wallet. He notes in this post:

Before ATM's were so widespread, I used to recommend carrying an American Express card as a check-cashing card when travelling abroad. More recently, although their practices have prompted me to threaten to cancel my card, I've kept it as an emergency backup.