I didn't learn much about it in high school officially, but my teacher did mention it. My college classes taught it in great detail. One of my class read the book The Legacy of Ashes which took an extremely critical view of the CIA.

First off, many of the coups such as Nicaragua and the like were not taught. After all, they were CIA operations and much is still not known about them. The interventions that were taught were either in defense of US national interests that were taken over illegally or an effort to stop the spread of communism. Keep in mind, during this time it was still very much up in the air how much of the world would be dominated by either capitalism and communism and the government felt our way of life was at stake. That said, we were taught McCarthyism and blacklisting were terrible things.

As far as high school level or below goes: they don't. American high school history classes tend to largely ignore or gloss over any historical event that pits America in a negative light, especially if it makes us look imperialistic.

Hell I think the only historical events of the 20th century that get much attention at all in American history classes are the world wars, the great depression, the civil rights movement and sometimes Vietnam (although even these are often glossed over and .presented in such a way that ignores or diminishes anything questionable in terms of morality).

It was not mentioned at all at the highschool level (NJ), but once I was in college it was. I believe the first in depth was a 200 level foreign policy class in political science. This means the average student going into any other field (business, arts, computers) would most likely never take the course. It however was a cross course so both History and Poli Sci majors could take it for credit.

So it becomes a standard issue I think with American education. The information is usually available if you want to learn, but, unfortunately, most people are never prompted to investigate.

These discussions are always problematic because generally the only thing you'll get are personal anecdotes. Due to a variety of factors including limited time/resources, varied curricula and individual teachers education in the US can vary from state to state, if not from school to school when it comes to history.

With that disclaimer aside, I can make a few broad points:

Pre-WW2 Imperialism (the Spanish-American War, Cuba, Philippines, Panama) is actually covered very well.

The Cold War curriculum becomes dominated by domestic issues (McCarthy), Cuba and Vietnam.

Any further detail depends almost entirely on the individual teacher and how much time he/she has to work with. Chances of getting covered are much better in more well-off school districts and at the College level.

It depends on the example, but much of it was taught within the Cold War narrative, which I'd argue is the proper way to talk about it. I definitely learned about the Anglo-American coup in Iran, the situation in Guatemala, the Bay of Pigs, Pinochet, & Iran Contra. Granted, I think the new "narrative", if you can call it that, kind of oversimplifies the situation.

As for "invasions", I'm not sure exactly what you're referring to. There were a few minor invasions that I don't think I learned in school. It's difficult for me to remember because I may have known about them at the time. Grenada & Panama may have even had decent support from the people of each country.

In public schools? Pffft. First, it won't be on the test. Second, it might discourage kids from volunteering in our military.

Third, that stuff never happened.

In my high school - we didn't cover anything after WWII. Actually, we rarely did in elementary school. The only time I remember getting past WWII in school was in state history classes. Of course, it's possible I just don't remember those bits because it was the last week before summer vacation.