Lots.
First off, Jaz found top secret info on the apartments. The scientists apparently have bugs and cameras and microphones hidden everywhere, monitoring everything we do. They also apparently have the capabilities and are going to try to copy all of our powers.
Then, the scientists overtook Johnny's body. Sarge came back here and pulled Jaz into a room and copied her powers, and temporarily, if not permanently, stalled them. Yuna took Johnny away to figure out what was going on, and I've been sitting here with Jaz since. I really have no idea how the whole Johnny thing went, as Yuna never gave me an update that I heard.