After a U.S. Army sergeant marched from a NATO base into civilian homes and opened fire killing 16—nine of which were children—furious Afghans have vowed revenge. “All my family is dead,’ said Nazim Shah, “We will get revenge on those who killed my family.” While the Afghan Ministry has urged that angered citizens show restraint, many fear that the violence will ignite tensions between the U.S. and Afghanistan after the Quran burnings. The U.S. believes that the shooter acted by himself and was part of a special operations unit of Green Berets or Navy SEALs in Afghanistan. He was from Joint Base Lewis-McChord in Washington. President Karzai has condemned the attacks as an unforgivable “assassination.” The U.S. Embassy has warned Americans in Kandahar, via Twitter, of retaliation.