Committee Chairman Sen. Bill Nelson, D-Fla., left, and actress and cancer survivor Valerie Harper exchange greetings before the start of a Senate Special Committee on Aging hearing to examine the ... more 
Committee Chairman Sen. Bill Nelson, D-Fla., left, and actress and cancer survivor Valerie Harper exchange greetings before the start of a Senate Special Committee on Aging hearing to examine the fight against cancer, focusing on challenges, progress, and promise, on Capitol Hill in Washington, Wednesday, May 7, 2014. Ranking member Sen. Susan Collins, R-Maine, and National Institutes of Health’s National Cancer Institute Director Harold Varmus, back left, watch. (AP Photo/Manuel Balce Ceneta) less 
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Associated Press | Photo By Manuel Balce Ceneta
Wed, May 7, 2014 5:33 PM EDT