Its list of Russian officials barred from entering the United States has not been made public, but some government figures prefer not to apply for a visa to avoid the humiliation of being rejected.
By her own account Sanchez has on some 20 occasions been rejected for the much-detested exit visa that for decades was required of all islanders seeking to go abroad.
Shares of Visa and MasterCard dipped last week after the Senate rejected a proposed six-month delay on a Federal Reserve rule to cap debit card swipe fees at 12 cents per transaction.