That is a good line of thinking anon…it would be a lot harder to bring a suitcase full of cash or contraband without scrutiny through commercial. Their bags would be x-rayed at the very least…even if not hassled, people could still talk.
https://www.reuters.com/article/us-usa-congress-ethics/u-s-lawmakers-travel-the-world-on-lobbyists-tab-idUSBRE97I0RE20130819
Hey Anon…I was looking real quick (work fagging) for lists of congressional junkets, found this article from 2013 saying there are several thousand CODELS/junkets per year..point being, you could get bogged down quick…maybe think of a specific event involving a foreign country and see which Rep or Senator went there via military flight? Or maybe just figure out what congress people have been to Mexico via military flight?