whilst on the topic of chicago... Has anyone else had problems on the trains?

Recently I had two friends who were pulled off the trains by under cover cops at the platform. The reason: "Taking pictures of a federal building is illegal" they were searched and given court dates. Aperrently two college students with p&s digicams are a "terroristic threat" two problems with this...

a) CTA is PRIVITELY owned
b) CTA is not a building

I really wonder what people are thinking these days. Oh to be inside those minds.