Like the earlier poster said, you need a high profile career where you are able to signal intelligence, mental toughness, and your political and patriotic leanings.
Journalism leads to all sorts of amazing career opportunities (if you want to think of it that way). A lot of journalists are actually doing lobbying for some special interest or the other.
Q: How do you get a job with the NSA?
A: You call your mom and ask for an application form.
The floor was full of huge expensive noisy booths from big corporations, universities and other government agencies. In contrast the NSA booth was the most basic booth on the floor. There was a simple printed sign in standard Helvetica font, same as used on all the cheap booths, with the agency's name (no logo), one guy in a suit sitting behind a bare table, and one chair in front of the table for visitors. Nothing else. The sheer minimalism of it made it impressive. I wanted to take a picture but, well, you know...