Arizona state Sen. Russell Pearce speaks in April during a vote on SB 1070, the immigration bill he sponsored. The final version resembled "model legislation" he helped draft during an ALEC conference in Washington, D.C., last year. Ross D. Franklin/AP hide caption

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Arizona state Sen. Russell Pearce, pictured here at Tea Party rally on Oct. 22, was instrumental in drafting the state's immigration law. He also sits on a American Legislative Exchange Council (ALEC) task force, a group that helped shape the law. Joshua Lott/Getty Images hide caption

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AstraZeneca settled a case with the government for $520 million in April after the company settled a separate lawsuit for speaker misconduct but continued to pay doctors to speak about prescribing drugs for purposes for which they were not approved. AFP hide caption

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Pfizer, one of the largest drug makers in the U.S., saw $27.8 billion in sales in 2009. Seven drug companies, including Pfizer, have disclosed information about doctors who receive payment for speaking fees related to products they sell. Mark Lennihan/AP hide caption

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Sgt. Derrick Junge was diagnosed with a concussion, but passed over for a Purple Heart. Junge has not received rehabilitation or treatment for ongoing medical difficulties, and he struggles with simple tasks. NPR/Frontline hide caption

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