I doubt they have anything on him. He's just frightened of something happening and his political opponents claiming that he "weakened" us somehow, which they would in a heartbeat.
Except your quote says exactly nothing of any use about what happened.
It's only been a few months since Balmer left, hasn't it?
Did the guys who stole the truck and opened the container ever turn up in a hospital?
I doubt Rand Paul has the interest in rolling back these abuses that his father does.
I voted for him twice and am disappointed, but have to admit he is still better than the alternative.