TSA Administrator Peter Neffenger prepares to testify during a House Homeland Security Committee hearing on Capitol Hill. Lawmakers sought answers as to why long security lines persist at airports around the country. Mark Wilson/Getty Images hide caption

Female Drosophila bifurca flies have an organ to store sperm (right) that male flies compete to fill, crowding out rivals. Scott Pitnick/Nature hide caption

Many Western ranchers don't own much land themselves and rely on vast tracts of federal land for grazing. Kirk Siegler/NPR hide caption

Demonstrators gather in a silent rally to mourn the death of an Okinawa woman in front of Camp Zukeran on May 22. The crime is thrusting the opposition to the U.S. presence on Okinawa back in the spotlight. The Asahi Shimbun/The Asahi Shimbun via Getty Images hide caption

Jake Ralston with his father, Jon Ralston. This week, Jake successfully petitioned to change the name and gender on his birth certificate to reflect that he is male. Courtesy of Jon Ralston hide caption

U.S. Secretary of State John Kerry (right), along with British Foreign Secretary Philip Hammond (left), speak to reporters in London on May 12. They tried to assure European banks they won't be penalized for conducting legitimate business with Iran. Critics say it should not be up to the U.S. to encourage investment in Iran. Josh Lederman/AP hide caption