If they have, I haven't heard about it.
That's the address of an article about national security.
I think that asking noncitizens for the passwords to their social media is much more lawful and respectful than hacking their phones, hacking their email, tracking all of their electronic transactions, and everything else that people who have no legal authority at all are doing to whomever they feel like controlling, for their own amusement.
The truth about privacy invasions is not being told to the world by the media. I can't know how many media sources, corporations, and anyone else who feels like it are watching me type this page at my phone before I publish it, either from hacking my phone or watching me from the hidden, illegal cameras in my apartment, or both.
Every few months for several years, people have gotten killed in civilian places. They're shot to death. They're killed by bombs that not only are designed to kill them, but to lacerate as many people as possible who aren't killed. They're killed by trucks being driven into crowds and buildings.
Please deal with reality. I care about privacy as much as anyone; I despair every day about ever having a shred of it again. However, I would not hesitate to give the passwords for everything requested to my own government or a foreign government; at some point, you have to trust the people who are trying to protect the world. You have to stop acting like they're out to get you; they're not out to get you, THEY WANT TO DETER PEOPLE WHO WANT TO KILL YOU.
Privacy is a right, but social media is a privilege, and a free privilege at that. If you have something that you need to tell someone, and you really don't want anyone to know about it, the U.S. Postal Service is a functioning agency, and I think I have proven over the past few years that some of its employees ought to have more mail to deliver than they do.
Copyright, with noted exceptions, L. Kochman, April 6, 2017 @ 1:11 a.m./No code, all policies operative, all the time. I'll publish my preliminary page and similar pages again.