A 14-year-old suicide bomber attacked NATO headquarters on Saturday in Kabul, Afghanistan's capital, killing six civilians and wounding five, including children. No soldiers were struck. The teenage attacker was wearing a vest packed with explosives, and rode up to the building on a bike before detonating. Although the Taliban claimed initial responsibility for the attack, they say the bomber was a 28-year-old and the target was the CIA's Kabul offices. The latest attack highlights militants' abilities to strike even the most secure parts of the Afghan capital, worrying officials.