300,000 more millionaires last year and there are almost 9 million millionaires in the country, that's how many there were before the recession. the financial consulting firm spectrum says the stock rebound helped a lot of households recover wealth but not all of america is benefiting from stock market gains. overall worth has gone down more than 12 million people are unemployed and the census bureau says over half of americans are poor. >> a tiny discovery could have big implications about the way we think about world exploration. few centuries ago scientists based at chicago's museum unearth...