[mtgx]

> Lets assume that US company does not want to force daughter company, how can NSA to make them?

How can you still ask that question right now? Have you missed the whole Wikileaks scandal? All it took was one phone call for Amazon to take down their website. They didn't even need a court order or something.

I don't know what the laws are exactly, but in practice, and thanks to post-9/11 culture in law enforcement agencies, they can do whatever they want as long as they wave "national security" in front of them.