Comment by DANmode

You’re talking about two different things.

One is where their hardware for storing data is. The other commenter was talking about global taps (the sources for the data), of which the Wikipedia article is not speculating the number of.

> how would NSA positions situated in embassies capture all of that Internet traffic in a foreign country without getting noticed?

ISP taps globally, undersea cable taps, the list goes on.