As for money printing, there have been concerns about it for decades, but the USA seems to be getting away with it. I think it's because of such a strong dominance of the USD as a foreign reserve currency and the power that the USA projects globally.
At least in Latin America the US$ shines, the people (horrible word for the common guys) love the US$, from the lowest classes to highest.
In terms of protection their own currency, its futile as they (those governments) also love the US$. The only blast it due to their "People".