CNBC's Becky Quick interviewed Warren Buffett yesterday.Interview With Warren Buffett: CNBC TranscriptEarlier in the interview, Buffett said that:"I think the stock market generally is the best place to have money..."Then he added:"...there's no question that worldwide there is some slowing down going on."He also made the following comments about Wells Fargo (WFC), U.S. Bancorp (USB), and banking in general:"In the last week, I bought some Wells Fargo."Then he later said..."But we only have 430-something million shares, so I didn't feel...