Lindolfo Carballo, an immigrant from El Salvador, meets his son, Raynel, outside school. In El Salvador, he says, families often "teach their boys one thing and their girls differently." He's trying to set a different example for his children. Sarah Tilotta for NPR hide caption

itoggle caption Sarah Tilotta for NPR

Russian Foreign Minister Sergei Lavrov called Monday for a cease-fire in Ukraine, but demanded that Ukrainian troops leave positions from which they can "harm the civilian population." His comments come ahead of talks in Minsk, Belarus, involving Ukraine, Russia, Russia-backed separatists and international monitors. Jia Yuchen/Xinhua /Landov hide caption

itoggle caption Jia Yuchen/Xinhua /Landov

A woman holds the saffron crocus, during the saffron harvest in Herat, Afghanistan (left). Saffron flowers are collected in Saint Hippolyte, eastern France (right). Since the stigmas need to be picked from the flowers by hand, saffron is the world's most expensive spice. Majid Saeedi/Getty Images; Maxppp /Landov hide caption

itoggle caption Majid Saeedi/Getty Images; Maxppp /Landov

British Prime Minister David Cameron told the House of Commons on Monday that he wants to give police the power to seize the passports of Islamist fighters bound for Iraq and Syria. PA Photos /Landov hide caption

itoggle caption PA Photos /Landov

There's new evidence reaffirming that eating foods with fat — everything from avocados and salmon to dairy fat — doesn't make us fat. eyecrave LLC/iStock hide caption

itoggle caption eyecrave LLC/iStock

Kenneth Bae, an American tour guide and missionary serving a 15-year sentence in North Korea, speaks to The Associated Press on Monday. Bae and two other detained Americans urged the U.S. to send a high-level emissary to secure their release. Wong Maye-E/AP hide caption

itoggle caption Wong Maye-E/AP

The Ricketts family poses on the Chicago Cubs field in 2010, a year after they bought the team. From left, Laura Ricketts, Joe Ricketts, Marlene Ricketts, Todd Ricketts, Tom Ricketts and Pete Ricketts. Nam Y. Huh/AP hide caption

itoggle caption Nam Y. Huh/AP

Third-year medical student Allie Tetreault, left, talks with Gabrielle Nuki, 16, at Maine Medical Center in Portland, Maine. Gabrielle helps med students practice patient care. Patti Wight/MPBN hide caption

itoggle caption Patti Wight/MPBN

A still from the surveillance camera footage shows the fainting man (top left and bottom right) lying alone in a subway car, as the few remaining occupants hurry away. YouTube hide caption

itoggle caption YouTube

Tony Stewart, driver of the #14 Bass Pro Shops / Mobil 1 Chevrolet, hits the wall on the backstretch during the NASCAR Sprint Cup Series Oral-B USA 500 at Atlanta Motor Speedway on Sunday in Hampton, Ga. Jamie Squire/Getty Images hide caption

itoggle caption Jamie Squire/Getty Images

A recent study found a brief delay in peak growth spurt among boys who took ADHD stimulants for at least three years, but no significant effect on their ultimate height. iStockphoto hide caption

itoggle caption iStockphoto

Nancy Becker, an Amazon employee in Bad Hersfeld, Germany, speaks at a protest rally outside the company's headquarters in Seattle in December. Ted S. Warren/AP hide caption

itoggle caption Ted S. Warren/AP

Kwei Quartey sets one of the crime scenes in his second D.I. Dawson book in Agbogbloshie, an Accra slum. Ofeibea Quist-Arcton /NPR hide caption

itoggle caption Ofeibea Quist-Arcton /NPR