新闻推送 每个人都遵守这些规则，但几乎没有人知道为什么。每一条规则都追溯到改变航空安全历史的真实事件。半岛电视台的Basel Ghazoghli为您解析。
NewsFeed Everyone follows these rules but almost nobody knows why. Each one traces back to a real incident that changed aviation security forever. Al Jazeera’s Basel Ghazoghli breaks it down.