Look to the fundamentals, ride out the volatility. The Latin American meltdown. The rise, fall and stagnation of the Japanese economy. The Asian contagion. Has turmoil in some foreign economies made investing outside the U.S. fit only for thrill seekers? Quite the contrary. Over the long term, most investors could benefit from global diversification. After recent downturns in some markets, many foreign stocks are bargain priced. With some economies poised for substantial growth, now may be an opportune time to go beyond U.S. borders. And yes, be prepared for an occasionally wild ride.