In 2001, two Japan Airlines flights narrowly avoided a mid-air collision by 400 feet. This could have easily resulted in one of the worst air disasters of all time. https://t.co/OktdD3OPBx https://video.twimg.com/amplify_video/1774930976679849984/vid/avc1/720x720/9Zyj4QDe-B4ICFX8.mp4?tag=14