I kept it simple. A longer description
is that with modern technology we don't
really have to occupy, run, or have
a big presence in the place to know
what's going on. And when we do see
something that is a threat to the US,
we can stop it without 100,000 troops
in the country. For the show you mentioned,
never saw any such thing!
You're pretty optimistic about those two things. The history of the past 10 years, and for that matter of the past 50 years, suggests that both are decidedly non-trivial challenges, with or without "modern technology."