A voter casts a ballot during the Republican primary election April 24 in Philadelphia. Jessica Kourkounis/Getty Images hide caption

Olympic swimmer Michael Phelps signed an endorsement deal with Subway in 2008, but because Subway is not an Olympic sponsor, Phelps isn't allowed to appear in a Subway ad from July 18 to Aug. 15 2012. via SubwayEatFresh365/YouTube hide caption

Elton John performs in Ibiza earlier this month. The British singer's new memoir is titled Love Is the Cure. Jaime Reina/AFP/Getty Images hide caption

Democratuic Sen. Tom Harkin of Iowa, who was involved in writing the health law, rejects claims that federal health exchanges won't be able to provide tax credits. Alex Wong/Getty Images hide caption

The German tanker Marida Marguerite, which was hijacked off the coast of Oman in 2010. Dietmar Hasenpusch/EPA/Landov hide caption

Unlike organs, tissue doesn't need to be transplanted immediately. Storage facilities like Tissue Banks International in San Rafael, Calif., process and store donated tissue for later use in medical products or as transplants. Noah Berger/AP hide caption

Veteran war correspondent Marie Colvin, shown here in Cairo, was killed in February while reporting in Homs, Syria. Ivor Prickett/AP hide caption

Mrado (Dragomir Mrsic) is the enforcer for a Serbian drug cartel that controls business in Sweden, and one of three characters who clash in Easy Money. Weinstein Company hide caption

Marathon medal winners listen to the anthem from the victory stand during the presentation ceremony at the XXI Summer Olympic Games in Montreal in 1976. From left, Frank Shorter, U.S.A., silver; Waldemar Cierpinski, East Germany, gold, Olympic record; and Karel Lismont, Belgium, bronze. Evidence of doping by the East Germans suggests that Shorter deserved the gold medal. AP hide caption

India's Sandeep Sejwal swims his way to gold in the 100-meter men's breaststroke at the 2006 South Asian Games in Sri Lanka. Sejwal, who competed in the Beijing Olympics two years later, has a government job with India's railway that accommodates his heavy training schedule. AP hide caption