If you watched Live Free or Die Hard (verdict: not bad at all), you might have noticed two things. The first, for DC residents, is how little effort they actually put into making the sets look like DC. The taxis here aren't usually yellow, people. Try to actually visit your locations.
Also, in the opening credits, you might have seen that the movie is based on "A Farewell to Arms," by John Carlin. I remember wondering what was up with that--was it a short story that they'd adapted? A novel?
Nope. It's this 1997 Wired article on information warfare preparation. Which is interesting for a number of reasons, one of which is that almost none of it has (as far as I'm aware) come true. Good news for the rest of us, I guess. Bruce Willis isn't getting any younger.