John Sopko, special inspector general for Afghanistan reconstruction, testifies on Capitol Hill last June. In a letter released Thursday, Sopko says the U.S. may have been paying for "ghost schools, ghost students and ghost teachers" in Afghanistan. Charles Dharapak/AP hide caption

itoggle caption Charles Dharapak/AP

Fatima Haidari, second from the right, and her bike riding club caught the attention of Humans of Kabul — the Afghanistan version of the popular Humans of New York blog. David Fox/Courtesy of Humans of Kabul hide caption

itoggle caption David Fox/Courtesy of Humans of Kabul

A group of Afghan women are attempting to reach the 24,580-foot summit this summer. In mid-May, two of the climbers, along with two American chaperones, visited Afghanistan's highest mountain to see the terrain firsthand in preparation for the historic climb. Soraya Sarhaddi-Nelson/NPR hide caption

itoggle caption Soraya Sarhaddi-Nelson/NPR