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There is no need for preparing. As Matt said, sanctions affect the sale of products. Things you own already can't be taken from you.

Aside from that, I don't think it's appropriate to blame NI in any way. They - as a company - have to follow these imposed sanctions. Otherwise, they could get into trouble. Sure, it's always easy to say "XYZ should stay out of politics", but at the end of the day it's way more complex than that.