Yup and people like him make tons of money off of people that are easily scared. If you want to prepare for a general emergency (Hurricane, Flood, Zombie attack) I would agree that is a good idea. But, if you are burying gold or silver in your bunker in the back yard, then you are going just a bit off the deep end. Is the world in an economic crisis? Sure, but the end of the world as we know it claims aren't anymore accurate than the dozens of other doomsday scenarios that have presented themselves in the past.
Relax, pour a glass of your favorite spirit, light a fine cigar and enjoy this limited time we have on earth.