Remember when I was telling you about genocidal whackjobs? Everyone's favorite was this asshole named Sigma, and he developed this airborne strain of a virus that basically, yeah, makes people act like people here do if they don't have a glyph. He released it around the same time he decided to drop a major colony on Earth, so it wasn't a fun time...

I don't know, but I'd be on the lookout anyway. It could take a couple weeks for behavior changes to stick with the Sigma Virus.