U.S. Gen. Stanley McChrystal, commander of the NATO-led International Security Assistance Forces, visits an Afghan National Police compound in the Baraki Barak district of Logar province on Aug. 21. Manan Vatsyayana/AFP/Getty Images hide caption

itoggle caption Manan Vatsyayana/AFP/Getty Images

U.S. Special Forces member rides a ATV with the children of Kuhak. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

Retired New York City Police Lt. Roger Parrino talks with elders in Khawji Jamal village. Soraya Sarhaddi Nelson/NPR hide caption

itoggle caption Soraya Sarhaddi Nelson/NPR