The NSA unambiguously can and does listen in on calls originating outside the United States, without the need of a warrant.
Every country in the world, including Sweden, Switerland and Canada monitor international communications in and out of their countries. It’s only in the United States that anyone makes a fuss about it.
the story does not say she was talking to an overseas caller
If all the Congress calls are being mined by a federal agency, then there would be ample blackmail material to keep everyone in line - who would be the recipient of this program data and who would have ability to control it...or use it... Maybe not even the supposed “executive office”
This reads like it happened under Bush
WTF
The problem is complicated by modern technology.
If you use a VoIP phone, you could possibly make calls using a US issued phone number from anywhere in the world via the internet, and that call would be routed by communications equipment within the USA if the calling subscriber used a US based VoIP service.
Therefore a terrorist in Pakistan can talk to another one in Afghanistan and both numbers could, for example, have a Washington DC area code.
So what would appear to be a domestic call between two American endpoints could, in fact be between two terrorists any place in the world.
There was a legal fuss in the UK, heard in some EU "Court of Human Rights." Ahh, found it. See http://www.freerepublic.com/focus/f-news/2098347/posts?page=17#17