Chinese President Xi Jinping (left) toasts with Britain's Queen Elizabeth II during a state banquet at Buckingham Palace in London on the first day of the state visit in October 2015. Elizabeth said on camera that Chinese officials had been "very rude" during the official visit.
Nadezhda Tolokonnikova (center) and Maria Alyokhina (left) leave a police station near Sochi on Feb. 18, 2014. They'd been arrested earlier in the host city of the 2014 Winter Olympics and walked free after being questioned about an alleged theft from a hotel.
An image from the Corruption Perceptions Index shows the U.S. with a score of 76, on a scale of 0-100. The top spot (judged the least corrupt) was taken by Denmark, with a score of 91.
Screengrab by NPR
Nigeria's former national security adviser Sambo Dasuki (center) arrives at the Federal High Court in Abuja on Dec. 14 for a hearing on charges of possessing weapons illegally.
Olamikan Gbemiga /AP
George Filenko, commander of the Lake County Major Crime Task Force (left) and Chris Covelli with the Lake County Sheriff's Department talk during a news conference at the police station on Sept. 2 in Fox Lake, Ill.