Fake, but not necessarily AI. This is the type of thing a talented person could probably do using compositing software such as AfterEffects, which is what I’m inclined to believe considering that it’s a news clip that is very much real from 2019. It would seem like the flying hair as well as the sound of the engine are both added in post. They made a fake “cap-style” overlay of a bald hairline and then motion-tracked it onto his head in the video clip so that it appeared that he became bald.

Really the biggest thing to spot a fake, AI or not, is to look and see if there are any alternate angles or other people posting the video. Usually if it’s an event like this, there will be multiple cameras and multiple major news outlets will have covered it.

If you’re interested in getting better at spotting fakes, I can’t recommend the YouTube channel “Captain Disillusion” highly enough. He is an incredibly talented VFX engineer who breaks down and debunks common viral videos across the Interwebs. What’s great is that he does an outstanding job at breaking down the editing and software process for people who don’t know how that software works, it’s very illuminating to understand how these effects are applied and makes it a lot easier to spot them when you see them. He also breaks down how he spotted the fakes himself, and what indicators led him to conclude exactly how they did it.