In this photo provided by the Bill & Melinda Gates Foundation, Pakistan President Asif Ali Zardari, right, and Bill Gates, co-chair of the Bill & Melinda Gates Foundation, left, discuss joint efforts ... more 
In this photo provided by the Bill & Melinda Gates Foundation, Pakistan President Asif Ali Zardari, right, and Bill Gates, co-chair of the Bill & Melinda Gates Foundation, left, discuss joint efforts to fight the spread of polio during a meeting in Washington Saturday, Jan. 15, 2011. Pakistan, one of four remaining countries where polio has never been stopped, is set to launch an Emergency Plan on Polio Eradication next week. less 
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Associated Press | Photo By Courtesy of the Bill & Melinda Gates Foundation, Paul Morse
Sat, Jan 15, 2011 1:34 PM EST