视频介绍
1956年美国大峡谷撞机
参考资料：
https://admiralcloudberg.medium.com/into-the-abyss-the-1956-grand-canyon-mid-air-collision-4dc9ba38f79a
https://en.wikipedia.org/wiki/1956_Grand_Canyon_mid-air_collision
https://www.thevintagenews.com/2022/05/13/1956-mid-air-collision-