I assume there is some particular combination of factors at play here:
The US has a very advanced military and intelligence apparatus which operates globally.
The US has an enormous area that it operates in domestically (large areas of both the Pacific and Atlantic oceans).
The US also has a relatively open culture and emphasizes free speech.
When you look at all of these factors it seems that by having all of them it makes it a lot more likely for people to detect UAPs and then talk about them. The other thing that might be at play here is that, as an American, I have no idea what a credible news source would be from Botswana and it is unlikely to be in English even if I would consume it in the first place.
The US has a very advanced military and intelligence apparatus which operates globally.
The US has an enormous area that it operates in domestically (large areas of both the Pacific and Atlantic oceans).
The US also has a relatively open culture and emphasizes free speech.
When you look at all of these factors it seems that by having all of them it makes it a lot more likely for people to detect UAPs and then talk about them. The other thing that might be at play here is that, as an American, I have no idea what a credible news source would be from Botswana and it is unlikely to be in English even if I would consume it in the first place.