When the stock markets get into serious trouble the Oracle of Omaha will come out of the woodwork to defend stocks. Once again, Warren Buffett just appeared on CNBC live from the New York Stock Exchange. Mr. Buffett said that he is buying stocks and is investing in the United States. The SPDR S&P 500 Index (NYSE:SPY) has climbed sharply off the lows. Traders should watch for intra-day resistance on the SPY around the $115.52 area.