Cancer survivor Jack Hoffman before delivering a drug-free pledge during the halftime of Nebraska's NCAA college football spring game in Lincoln, Neb., Saturday, April 12, 2014. (AP Photo/Nati Harnik)... more 
Cancer survivor Jack Hoffman before delivering a drug-free pledge during the halftime of Nebraska's NCAA college football spring game in Lincoln, Neb., Saturday, April 12, 2014. (AP Photo/Nati Harnik) less 
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Associated Press | Photo By Nati Harnik
Sun, Apr 13, 2014 9:57 AM EDT