These Vanguard funds won't necessarily keep you from losing money if the market crashes. But they can help cushion the blow.
Investors may be getting spoiled. The S&P 500 (^GSPC 0.43%) has delivered double-digit gains for three consecutive years, with returns in two of those years topping 23%.
The idea of a stock market crash might seem silly. However, two indicators -- th... [4197 chars]