Because the CIA sends spies out into the field - that's what they do. Many large American corporations have offices overseas, often some of the 'workers' are CIA, they use sales jobs etc. as cover. Esp. in the Middle East.

The NSA does not have agents out in the field as we understand it. The NSA is mostly nerds, crypto, tech. They're not spies or agents.

But the author's claims of being seduced by an NSA (or even CIA) 'honeytrap' are not corroborated in any way by anyone. Given that he's on record as claiming he can 'transform' himself into a Puma (I mean literally), well, his credibility is a little too 'off' to accept uncorroborated stories.