> The omitted specifics around "national security" suggested that perhaps there was more to the story
there were and still are no specifics provided by the administration on how this is a matter of national security to the point of halting the project, only implausible pretexts which are insufficient by default until convincingly proven otherwise.
given the 'national security because we said so but with more words' pretext, we see there was and is indeed no more to the story than that.