In this July 5, 2012 file photo provided by the George W. Bush Presidential Center, former President George W. Bush and his wife, Laura Bush stop to talk with people who have lined the hallways of the Princess Marina Hospital in Gaborone, Botswana. The government spent nearly $3.7 million on former presidents in 2012, according to an analysis just released by the nonpartisan Congressional Research Service. That covers a pension, compensation and benefits for office staff, and other costs like travel, office space and postage. The costliest former president? George W. Bush, who clocked in last year at just over $1.3 million. (AP Photo/George W. Bush Presidential Center, Shealah Craighead, File)
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