It's already clear that Visa/MasterCard will be a key part of US sanctions against Russia so this is partially a pre-emptive strike. I generally doubt it's goin

It's already clear that Visa/MasterCard will be a key part of US sanctions against Russia so this is partially a pre-emptive strike. I generally doubt it's going to work out though. My partner is Ukrainian and apparently the Crimeans which were recently annexed and now have to switch are utterly shocked by state of e-banking at their new Russian banks; which doesn't bode well for their efforts...