I learned this from nearly every episode of Perry Mason

The Conversation is another good Hackman film from the early 70s

I believe The French Connection is the movie that started the current script for car chases.

Bullitt would like a word

Yes they were operating in secret. There are many examples of their infiltration, such as the Cambridge Five.

In the quote he says he’s talking about the Cold War.

Russian and Chinese communism

Because someone keeps buying them 10 at a time