One thing I was thinking about would be "plagues" that breakout and have a "containment zone" would be an interesting hook... having one character that is wizard working at the CDC or WHO
A wizard would have problems working directly for either of those outfits (he or she would be awfully hard on modern office and lab equipment). I could see the Wardens having an informant there. Pity the poor warden who has to go into the hot zone, simultaneously stopping the evil, dodging the authorities, and trying to keep said authorities safe and ignorant.
