|News and Chicago Police crews at|
the Mayne Stage April 27, 2012.
In back, police officers were guarding the alley and backstage door.
Sean McCown, Chief Operation Officer for the Mayne Stage, wouldn't comment on the activities around the building, other than saying it was "top secret."
Update: The Senator Dick Durbin, Mayor Rahm Emanuel and Governor Pat Quinn are speaking at 10:00 a.m., to talk about the future of our mass transit system.
Update: No sign of any demonstrators or protesters such as Occupy Rogers Park, as of yet.