Staci Moritz and her son Aidan, 11, play at a park in their neighborhood in Portland, Ore. Caring for three children and her injured husband exacerbated her health problems. Beth Nakamura for NPR hide caption

Ann Cleeves, who sets her mysteries in Shetland, once asked a pathologist friend what the perfect murder would be. "He reckoned pushing somebody over a cliff," she says. "Because how would you know whether they'd fallen or just been pushed?" Infinite Ache/Flickr hide caption

Sgt. Jarrod Simmons speaks to his squad of Marines before they head out on a training march with 55-pound packs on Feb. 22, 2013, at Camp Lejeune, N.C. The Marines and the other military branches must open combat jobs to women in 2016. More than 160 female Marines are taking part in a grueling training program that begins this summer. Scott Olson/Getty Images hide caption

A money changer sits behind piles of banknotes in Hargeisa in Somaliland, an autonomous, relatively peaceful region in northern Somalia. The self-declared nation of Somaliland, like Somalia itself, lacks a formal banking system, and residents rely on hawaladars to receive money from abroad. Simon Maina/AFP/Getty Images hide caption

Detainees sleep and watch television in a holding cell where hundreds of mostly Central American immigrant children are being processed at a U.S. Customs facility in Nogales, Texas. Getty Images hide caption

Robert Shaw (from left), Roy Scheider and Richard Dreyfuss play a shark hunter, a police chief and a marine biologist in 1975's Jaws. Universal/Kobal Collection hide caption

A team-building exercise involving marshmallows and knives is led by Create-Learning. This is relatively tame compared with some co-worker bonding activities. Clark Dever/Courtesy of Create-Learning hide caption

After becoming the kind of star she never wanted to be, Australian pop singer Sia is refusing to show her face. PRETTYPUKE/Courtesy of the artist hide caption