No true journalist would fail to follow up on this. Exactly what institution(s) are threatened, and precisely how? Clapper’s statement is too broad to mean anything, and Tapper’s failure to inquire more deeply proves his failure (to objective people) as a legitimate journalist.
You’re right. Clapper makes an alarming statement with no specifics and Tapper just lets it hang out there. Totally irresponsible by both of them.