Why a tuna brought in millions at auction

A bluefin tuna has just fetched $3.2 million at a fish market in Tokyo. That price was paid by an entrepreneur who owns a chain of sushi restaurants in the country. The fish itself happened to be quite large, but a bluefin tuna scarcity due to overfishing likely contributed to the record-breaking price tag. Hosts Carolyn Beeler and Marco Werman have more details.