The Sabbat!
I bet you're all in suspence about this Sabbat thing, right? OK, here goes:
4 Brujah-antitribu have been spotted in Chicago by the Assamite. He hasn't had the presence of mind to mention them to anyone yet, but then again, maybe he isn't aware of the eternal war between the Sabbat and the Camarilla...or maybe he doesn't care?
One of the Brujah-antitribu has been sent to his Final Death by Hale, with help from Chakan. There are at least 3 more, plus one Lasombra and one Tzimisce. And these are the only KNOWN Sabbat in the area. What other clans have spys in their midst?
In light of recent headlines, it seems that about 15 gang-bangers have been embraced by the Sabbat. In addition, (unknown to the party) the Bishop has used her fleshcrafting to create several Szlachta and is working on a Vozhd.
The Sabbat claim's allies in every clan, and they work their way into the Camarilla's ranks as often as possible. Who will turn, when the pressure rises?