The US had a nationwide Emergency Alert System test yesterday. It was a "Presidential Alert" which can't be blocked, and there were some very imaginative conspiracy theories that I won't describe here.
We had one of these in 2018, and crazy person John McAfee tweeted some nonsense about how it would access everything in your phone. Wikipedia quotes his tweet in a sidebar in their "Wireless Emergency Alerts" article.
So when you search "presidential emergency alert" on Google, guess what excerpt Google picks for that Wikipedia article?