There's a good chance that Iran's computer systems, the electricity in Indonesian PM's office and the body armor protecting Saudi soldiers came from Israel.

Facebook's debut on the stock market was preceded by epic hype, delayed by a technical glitch and tracked minute-by-minute by investors around the world. In the end, the fuss was over a gain of 23 cents.

With uncertainty in Europe spooking investors away from any asset perceived as risky, many Americans have become wary of overseas equities. While the fear is understandable, it may be keeping us away from some of the world's most promising economies.