This is America, last I checked. Surely, the government would not force the sale of a social-media company or ban its app from the Google and Apple stores. Would it? Well, yes, it would,  could (perhaps), and might. A bill in Congress, backed by the government's nominal chief executive, could become law. The House of Representatives passed it last week by an overwhelming bipartisan majority -- despite valiant efforts by Rep. Thomas Massie,  R-KY, plus a few others -- and it is now before the Senate. That bill would establish fuzzy criteria defining a "foreign adversary's" alleged influence...