Noticed this update in a statement:
Effective August 15, 2016, we are updating your Cardmember Agreement to state that, for any charges you make in a foreign currency, AE Exposure Management Ltd. ("AEEML") will convert that charge into U.S. dollars.
This appears to just be a subsidiary of Amex, but I couldn't find much more info in a quick google search.
Anyone know more about this subsidiary and how they might compare to how Amex has previously converted foreign transactions? I've found their conversion rates in the past to be quite fair, and would be saddened if this shift changes that for the worse in order to support the bottom line of a separate entity.