Billionaire investor Warren Buffett says the economy appears to have leveled off at the bottom of the recession over the summer, but Berkshire Hathaway's CEO still isn't seeing much improvement.

Buffett talked about the economy during an interview with CNBC that aired on Tuesday and Wednesday.

"I think the odds are very much against getting significantly worse. It's sort of plateaued at the — at the bottom right now," Buffett said to CNBC. But he said things could get worse if there were some new catastrophe like the Sept. 11 terrorist attacks.

The Oracle of Omaha's comments followed Federal Reserve Chairman Ben Bernanke's statement Tuesday that the worst recession since the 1930s is "very likely over."

Buffett was among the first in March 2008 to say the economy was in a recession. Buffett said at that point the economy had entered a recession in common sense terms even if it hadn't met the technical definition economists use of two consecutive quarters of negative growth in the nation's gross domestic product.

Buffett keeps a close eye on the economy through all the reports he sees from Berkshire's retail, real estate brokerages, manufacturing and utility businesses.

Buffett said he can't predict exactly when the economy will recover partly because he expects there will still be additional problems in the commercial real estate market, but he believes the economy has passed the critical point.

"I've never been able to tell whether it's going to be a week or a month or — six months. But we are on the mend," he said.

A year ago, Buffett said the nation was facing an economic Pearl Harbor, and this week he commended some of the heroes of the nation's economic war. Buffett said the heroes include Bernanke, former Treasury Secretary Henry Paulson and current Treasury Secretary Timothy Geithner.

Buffett said it's easy to look back at the crisis now and find things that might have been done differently, but the important part is that the nation came through the crisis and appears to be on the path to recovery.

Buffett's Berkshire owns more than 60 subsidiaries including insurance, clothing, furniture, jewelry and candy companies, restaurants, natural gas and corporate jet firms and has major investments in such companies as Coca-Cola Co. and Wells Fargo & Co.

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