Just rec'd my Citi card bill with an insert of change in terms. The one that struck me was this:

We add a fee of 3% of the U.S. dollar amount of each purchase made outside the U.S. whether made in U.S. dollars or in a foreign currency.

They were already charging a 3% fee for transactions made in foreign currencies but now it sounds like if you fall for the dynamic currency conversion you'll also get dinged an extra 3%. Or maybe this will make the dynamic currency conversion scam go away. Am I understanding this correctly?