FILE - In this May 1 2010 file photo, Berkshire Hathaway Chairman and CEO Warren Buffett plays and sings with the Quebe Sisters Band during the annual shareholders meeting, in Omaha, Neb. Buffett’s ... more 
FILE - In this May 1 2010 file photo, Berkshire Hathaway Chairman and CEO Warren Buffett plays and sings with the Quebe Sisters Band during the annual shareholders meeting, in Omaha, Neb. Buffett’s recent prostate cancer diagnosis reminds Berkshire Hathaway shareholders that someday the 81 year-old will no longer run the conglomerate he built. Most shareholders would rather not imagine life without the Oracle of Omaha at the company’s helm, especially when more than 30,000 of them are gathering in Omaha for this weekend’s annual meeting. (AP Photo/Nati Harnik, File) less 
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Associated Press | Photo By Nati Harnik, File
Thu, May 3, 2012 6:06 PM EDT