An American flag flies over the Supreme Court in June. Mark Wilson/Getty Images hide caption

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Former Sheriff William "Dub" Lawrence, in a scene from the documentary Peace Officer. It's not his job to investigate old crimes and officer-involved shootings — but that hasn't stopped him from obsessing over them. Courtesy of the artist hide caption

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President Lyndon B. Johnson giving Rep. Michael Feighan the famous "Johnson treatment" --€” using his imposing physical presence to persuade --€” aboard Air Force One during a presidential trip to Cleveland in 1964. LBJ put heavy pressure on Feighan to support the new immigration legislation. Feighan eventually agreed,€” but he demanded a crucial change to the act. Princeton University Library/Simon & Schuster hide caption

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A cell at El Reno Federal Correctional Institution in Oklahoma, which President Obama visited in July. The Sentencing Reform and Corrections Act would apply only to federal crimes and federal prisons, which house a shade over 200,000 inmates — a tiny fraction of the population detained in jails and state facilities. Saul Loeb/AFP/Getty Images hide caption

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Hundreds of people gathered for a vigil in Roseburg, Ore., Thursday night, after 10 people died and seven others were wounded in a shooting at the local community college. Josh Edelson/AFP/Getty Images hide caption

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Volkswagen sales slowed after it was revealed that the company had been cheating emissions tests by outfitting some diesel cars with "defeat devices." Markus Schreiber/AP hide caption

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Customers browse samples at Shango Cannabis shop, after the first day of legal recreational marijuana sales began at midnight in Portland, Ore., Thursday. Steve DiPaoloa/Reuters /Landov hide caption

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Hillary Clinton speaks at an event in New Hampshire earlier this month. The presidential candidate continues to face questions over her emails as secretary of state. Darren McCollester/Getty Images hide caption

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Death row inmate Kelly Renee Gissendaner is seen in an undated picture from the Georgia Department of Corrections. Following repeated delays, Georgia carried out its first execution of a woman in 70 years on Tuesday evening. Handout/Reuters/Landov hide caption

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A Volkswagen Passat is tested for exhaust emissions, at a Ministry of Transport testing station in London. In the U.S., a 1998 copyright law prevents safety researchers from accessing the software that runs cars. John Stillwell/PA Photos/Landov hide caption

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