Not a high level one? Snowden is quoted as being a "Genius among geniuses" by NSA employees. He had full system access due to his position as an admin. Even with that, he convinced at least 25 employees to give him their log in information so he could steal all the data without raising suspicions. Snowden was making over 200k a year working with BAH in Hawaii.It's actually even stupider than that.
You know how like, you read on the internet, a few times a year, some suburban Muslim moron got hooked onto reading the wrong sites on the internet, and then gets a visit by the FBI for offering to help ISIS or Al Qaeda blow up Times Square or something? Snowden is the White Angle Saxon Protestant version of that.
Eddie Snowden has self taught smarts, but a life of pretty low achievement. He got his GED. He dropped out of college. His contractor job at the NSA was not a high level one. But what he did do a lot of was hang out on the internet exactly like the poser terrorist above. He hung out on the internet and read lots of websites and hung out a lot on forums, specifically the Ars Technica forums.
How many posts did he write? Something on the order of 40 a day, mostly on political issues. He lived there, for years.
What I'm describing is a person who got radicalized on the internet, on a forum not terribly different than this one. He saw Julian Assange's leaks, and became political sympathetic to a kind of anarcho-libertarian worldview that was in typical wannabe Al Qaeda suburban terrorist style, naively critical and hostile to American foreign actions. You can even look at how he responds when confronted by people like John Oliver. Edward Snowden is not a man, paradoxically, who likes to question what he assumes to be right.
Now I don't mean to equate Edward Snowden with ISIS or anything dumb like that. But he is an example of another type of internet radicalization. The guy who goes and tries to get to Syria via Turkey have hanging out on an ISIS forum is just the Islamic extremist expression of a larger phenomenon of disenfranchised young people who get stuck in echo chambers and come to believe, somewhat unquestioningly rather extremist things. And to be clear, what Edward Snowden is on record of believing, politically (putting aside the leaks), is very, very far outside the political mainstream in the US or Europe. It is the politics of someone who reads a small group of websites and considers that life experience or all there is that he needs to know.
If you can say one thing about Edward Snowden, it's that he is a essentially a forum political crusader who took his agenda out of the Ars Technica bulletin board and into the real world, which is a lot more than almost any other forum political crusader has ever done. But his entire political philosophy and the justification for his actions is as easily challenged as the wannabe-ISIS footsoldier's justifications for their rage against the West because they both come from the same type of source: websites that tell disenfranchised young people that the world is upside down and wrong for a set of easily comprehensible reasons, and that one type of radical action is the way to make it right.
In the end, like the wannabe ISIS footsoldier, Snowden threw his life away for nothing.