This is a popular question now -- how to hedge against the possible devaluation of the dollar compared to other currencies.
Rather than literally buy (say) Swiss Francs or a Swiss Franc ETF, buying the foreign equivalent of treasuries may make sense -- as a way to get interest.
The ones I've found out about so far are:
BWX - not hedged
BNDX - Vanguard, hedged
**IGOV**: NASDAQ
I welcome opinions about them and alternatives. I am a little surprised there is a Swiss Franc EFT, but so far I have not found a country-specific foreign treasuries (the treasuries of just one country).