If social media companies exist to collect massive troves of personal info from users–and they do–then there is a valid national security concern over social media controlled by an adversary. This is distinct from the individual privacy concerns towards domestically-controlled social media.
I want Roland Emmerich to make a movie out of the short story A Pail of Air.
tl;dr/spoiler: ~20 years ago, a black hole passed through the solar system and captured the Earth, dragging it inexorably away from the Sun. This causes great earthquakes, tsunami, and other immediate civilization-ending catastrophes, but the real disaster comes when the atmosphere freezes and falls like snow to the ground. The original story follows a young boy born after the cataclysm whose chores include collecting buckets of frozen air.