Didn’t Tucker Carlson claim that his signal messages were intercepted by the NSA when he was trying to arrange an interview with Putin ?
Discussion
Even assuming Tucker is not just full of shit (big assumption), all you really know is they somehow got wind of that interview. NSA have a lot of ways to wiretap people, so he's just speculating it's through Signal.
Yeah. That sounded a little rich. They probably had lots of other and easier ways to listen in on his phone.