Yes they are pretty crazy and if your using the swift network which is pretty much 100% certain if your exchanging dollars through a bank they can just take your money, escape the dollar!

"On 26 February 2012 the Danish newspaper Berlingske reported that US authorities have sufficient control over SWIFT to seize money being transferred between two European Union (EU) countries (Denmark and Germany), since they succeeded in seizing around US$26,000 that was being transferred from a Danish businessman to a German bank."