In my honest opinion, ABSOLUTELY NOT, PEDE! I mean, the ONLY thing that makes me think this would be a bad idea in the end is that they actively INFECT. By their very nature, they only know how to infiltrate and take over. Sometimes, at least in the beginnings the "the enemy of my enemy is my friend" is quite true, but given any length of time, they'll revert back to their nature and start their insidious shit, again.