A bus driver knocked an explosive-laden drone out of the air, potentially preventing an attack this week at a German airport that serves as a major Nato and cargo logistics hub, a senior lawmaker said ‌on Friday. The man spotted the drone flying low while he was working at Leipzig/Halle airport late on Tuesday, then kicked out at it in what Detlef Seif described as a courageous but dangerous act. The drone, which prosecutors said was equipped with professional explosives and a detonator, then crashed nearby, Seif, from the governing conservative CDU party, told journalists. Seif’s statement was the most detailed account to date of ‌how the drone was spotted and stopped. Authorities have not named the man or said where the drone came from and how it managed to get into a restricted part of the airport.