It's quite baffling that a low-level IT contractor is given this much access and also is making $200,000/year. Why is so much of government farmed out to contractors? Also, isn't there a large risk that someone at the bottom of the chain grossly misunderstands the materials he is leaking?
Interesting fact, the low-level people in an intelligence org tend to have the broadest access. It is the high-level people that are put in compartmentalized verticals and plausible deniability (one of the latter DIRNSAs used to be famous for trying to know as little operational details as possible).
IT needs to have access to all systems to install patches and such, strategic decision makers just have access to need-to-know.
The KGB would always try to recruit people that ran the copy room and mail room. Now IT is probably the biggest target.