A man in Nairobi, Kenya, stands in front of a mural of President Obama, created by the Kenyan graffiti artist Bankslave, ahead of Obama's trip to Kenya and Ethiopia. Ben Curtis/AP hide caption

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This screen grab of video from a security camera, dated July 11 and released by Mexico's National Security Commission, shows the man Mexican authorities say is Guzman inside his cell at the Altiplano maximum security prison, looking at the shower floor shortly before escaping through a tunnel below. AP hide caption

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Mary Helen Flores (center) is the founder of Citizens Against Voter Abuse. John Burnett/NPR hide caption

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Jonathan Treviño poses in front of a drug bust. Courtesy of Jonathan Treviño hide caption

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Jonathan Treviño shows seized contraband. The former police narcotics squad leader is currently serving 17 years in prison for reselling narcotics back to drug dealers. Courtesy of Jonathan Treviño hide caption

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Zhou Qiang, president of the Supreme People's Court of China, speaks to the National People's Congress in Beijing on March 12. Chinese authorities are waging a major campaign against corruption, and that includes a list of 100 suspects believed to be overseas. Many are former officials who are thought to have fled to the U.S. or Canada. Lintao Zhang/Getty Images hide caption

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People, most of them unemployed, line up March 19 at a popular Itaborai, Brazil, restaurant where they can have lunch for about 30 cents. The Petrobras refinery and processing plant on the outskirts of town has been shut down; tens of thousands are now out of work in the area. Vanderlei Almeida/AFP/Getty Images hide caption

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In this Aug. 14, 2013 file photo, former Illinois Rep. Jesse Jackson Jr. and his wife, Sandra, arrive at federal court in Washington to learn their fates when a federal judge sentences the one-time power couple for misusing $750,000 in campaign money. Susan Walsh/AP hide caption

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Former Virginia first lady Maureen McDonnell (left) arrives at federal court in Richmond, Va., with her son Bobby for her sentencing on corruption charges Friday. Steve Helber/AP hide caption

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