It's always reasonable to be cautious, even wary. Doubly so these days. Throwing caution to the wind is what got the US economy into this mess. Never stop being cautious when dealing with any sort of market.

That said ever since the end of 2008 you can find a Forbes or WSJ opinion piece not less than once a month about how within the next six months the entire planet is going to fall straight to bits and theres nothing you can really do about it, but heres a few things to do to make you feel better. And those things always happen to conveniently be things that make the problem even worse, basically putting your money into a mattress. Another common theme is that the fact the government is spending a dime at all on anything is whats causing the problem, despite the fact that the US governments deficit problems only play a small part in the overall economy (consumer confidence, lack of hiring, and etc are all more important woes).

This particular article is bad enough that I really wish I could downvote it. It's a scare article marketed as journalism and I think it's pretty insulting.