I keep seeing information about making airports easier, and I saw that even the government is setting up programs to let some people go in a fast lane without having to unpack everything or take everything off. But those programs that I read about, the precheck and the Global Entry both cost $$$ to get in, and then you have to get interviewed and ???.
Has anyone done this? Does it really make a difference? Is it hard to get in? If you get in, does it work in airports in other countries too, or only U.S.?