Insurance companies negotiate with hospitals and doctors the price of every treatment, procedure and medical service. That price differs from hospital to hospital — even health plan to health plan. Vincent Wartner/Science Source hide caption

Onlookers take cell phone pictures of stranded window washers hanging from scaffolding on the side of One World Trade Center. Timothy A. Clary/AFP/Getty Images hide caption

These books for daily, independent reading have been sorted by difficulty and labeled with letters. Popular writers, including Dahl and Rowling, get their own bins. LA Johnson/NPR hide caption

One of America's favorite bites: the hotdog. Here, a man and women enjoy the dogs at a California fair in 1905. Courtesy of Sourcebooks hide caption

Rubén Blades made his Jazz at Lincoln Center debut in New York this week. Over his right shoulder is trumpeter Wynton Marsalis. Courtesy of the artist hide caption

U.S. Rep. Juan Vargas, D-Calif., speaks Wednesday as U.S. military veterans, service members and immigration reform advocates look on during a press conference urging President Obama to move forward with immigration reform at the U.S. Capitol in Washington. Saul Loeb/AFP/Getty Images hide caption

A 2015 F-150 rolls off the assembly line at the Dearborn Truck Plant in Dearborn, Mich. The aluminum-sided F-150 could set a new industry standard — or cost the company its pickup truck crown. Paul Sancya/AP hide caption

Palestinian men shout slogans next to Israeli police as they await permission to enter what Jews call the Temple Mount and Muslims call the Nobel Sanctuary, on Nov. 5, in Jerusalem, Israel. On Friday, Israel dropped age restrictions on men attending Friday prayers, a move aimed at lowering tensions around access to the contested shrine. Lior Mizrahi/Getty Images hide caption

Back in 1925, thousands of Ku Klux Klan members paraded past the U.S. Treasury building in Washington, D.C., as part of a big rally. Throughout its iterations, the KKK has tried to position itself as a respectable, mainstream civic organization. AP hide caption

Dave the Spazz does a weekly show on WFMU. Courtesy of Ray Ray Sunshine Films hide caption