For that kind of money, you could get your international exposure sipping cognac on the Concorde. The USA has been on a tear. That's its best performance in 40 years. Any other investment looks shabby. Currency changes add risk.
International funds have to convert their profits to U.S. dollars.
That can help or hurt. When the dollar falls in value, it helps. When the dollar rises in value, it hurts. In recent years, the dollar has risen against most world currencies, which has put international funds at a disadvantage. Steve Savage, editor of The No-Load Mutual Fund Analyst newsletter, isn't quite ready to throw out international investing.