Microsoft Corp. founder and chairman Bill Gates listens to a question during 

Microsoft Corp. founder and chairman Bill Gates listens to a question during Microsoft's annual meeting of shareholders, Wednesday, Nov. 28, 2012, in Bellevue, Wash. (AP Photo/Ted S. Warren)
Associated Press
Microsoft Corp. founder and chairman Bill Gates listens to a question during Microsoft's annual meeting of shareholders, Wednesday, Nov. 28, 2012, in Bellevue, Wash. (AP Photo/Ted S. Warren)
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