A friend brought this up and now, I want to know the answer:
Basically, he saved up some US dollars. With its value much lower than before, he doesn't want to use thm in another country with a differente currency because he'll lose due to conversion rates.
He's thinking maybe he can open an account, with a debit card that he can use to buy stuff from the US, mostly online.
Is there a bank that would allow this? Really curious.