As always, invest based on your risk comfort level. Remember that media headlines should not be what is driving your overall strategy and, instead, thoughtful analysis of your goals (and willingness to absorb pain in market down periods) is what is necessary for a successful investment strategy.
Decide which type of investor you are before you invest and make sure the overall strategy reflects your view of the world as well as the degree to which you can afford to be completely wrong. And always remember that no matter what you read, opinions change and strategists are fallible.
It's a mistake to believe that anyone has all the answers; if they did they probably would not be sharing their secret with the world ......
