Let's for a moment suppose that visa and mastercard go nuts.
They block all the card and money transfers.

What would be the short term consequences?
A bank run? A drop in e-commerce? enormous use of webmoney ? Bitcoin usage?

Nationalization?  Oh my god! What is this , back to '45 ?

That you think the USSR constitution was followed, or even meant something, is very telling...

That's kind of a stupid statement. He is blaming the existence of a group of countries that have economic agreements, that were good enough that Ukraine wanted to join in, on what happened in Ukraine? I would have blamed whoever it was that was trying to prevent Ukraine from joining the thing they waned to join. I mean, it's almost like blaming the store a person was trying to get to for that person getting mugged, and not the mugger that prevented that person from getting to the store.

eventually you right, soon there will be revenge and western backed Ukraine will see also massacres  

Moscow has accused a UN report on violence in Ukraine’s Odessa of being purposefully blind to hard facts and simply “carrying out a political order to whitewash” the actions of the coup-appointed government in Kiev.

Among other things, it [the report] also focuses on the problems the Tatar minority currently faces in Crimea - although there’s no mention of Kiev blocking the region’s freshwater supply – which “violates a whole range of human rights”.

...

The foreign ministry found it peculiar that “in some 30 pages of text, there is not one mention of any manifestation of aggressive nationalism and neo-Nazism in Ukraine.”

...

The icing on the cake, in Moscow’s view, could be seen in the venue where the UN findings were presented – and by whom: in Kiev, by the UN secretary-general’s assistant, Ivan Shimonovich, who has a “reputation for a lack of objectivity, making sweeping judgments” and “unsubstantiated claims.”

Shimonovich’s role in the presentation is seen as “an unambiguous indication” of the OHCHR’s bias and lack of independence and objectivity.

The ‘Lift the Skirt’ campaign encouraging French schoolboys to show up to class in traditionally female attire has incited a tense counter protest from conservative groups.

“It is not a trivial matter,” the group’s president Ludovine de La Rochère said. “It is a form of cross-dressing and is therefore a denial of the boys’ sexual identity,” she continued. “It is disrespectful to masculinity and femininity.”

Many students were angered that adults had attempted to promote their own agendas on the back of the student-led initiative.

"They have no right to come to our lycee and hijack our idea," Laurine, a student, told the French language news website 20 Minutes.

"You can protest against sexism without having the intention to promote gender theory. That has nothing to do with the original issue and aim of this demonstration," said another.

How the hell will a 25% fee on profit be larger than the revenue?

10-30 Millions?
He's going to be lucky if there will be 10 to 30 people showing up.
Plus a few hundred RT reporters .

“Moreover, the situation with payments for Russian gas only got worse over this period of time. Gazprom has not received a single payment for the gas supplied to Ukraine, and the total debt has grown from $2.237 billion to $3.508 billion,” the president stressed.

“And this despite the fact that Ukraine has received the first tranche of the IMF loan in the amount of $3.2 billion,” he added.

I wonder how much more land will got to Russia and which nation will be next? Cough *Belarus Cough