"I'd think they would have already figured it out. A black market isn't really hard to start - it's just hard to keep hidden."

The black market in 12 had done well for a long time, flourishing because the peacekeepers there just didn't care enough to break it up. Katniss thinks something like that might work well here, too, if there were enough illicit goods to get it started.

"Are you still getting sick without it?"