The United States killed al Qaeda leader Ayman al-Zawahiri in a strike in the center of Kabul in the biggest blow to the militant group since its founder Osama bin Laden was killed in 2011. #alQaeda #AymanalZawahiri #CIA #UnitedStates #OsamaBinLaden #News #Reuters Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en