The NSA posted a statement to social media Tuesday night saying it targets “foreign powers to generate insights on foreign activities that could harm the United States.” The agency is not allowed to single out U.S. citizens such as Carlson without a specific court order, it added, and the NSA “has never had any plans to try to take his program off the air.”... After Carlson’s initial accusations on Monday, some speculated that the Fox host may have been communicating with someone deemed the agent of a foreign power. Carlson also doubled down Tuesday on allegations of improper surveillance. He suggested to viewers that it could “happen to you” and said the NSA had tweeted “an infuriatingly dishonest formal statement, an entire paragraph of lies.” He said he had called agency officials that day, including Director Paul Nakasone, whom Carlson denounced as a “highly political left-wing four-star general who runs the NSA.”