You can bring in all these theories about people like Halper if you want, but the fact of the matter is that Barr did not. If Barr has reason to think that Halper went beyond the FISA warranted mandate of watching certain individuals and was spying on the campaign then he should say so, otherwise, as I already said, it is an unfounded smear. Incidentally, I am arguing with the facts as I understand them, and you are arguing emotionally, with language like "blows my mind", and "stop embarrassing yourself".
Cheers!