Surveillance cams help fight crime, city says: Goal is to have them on every corner.

Via A Surveillance Camera On Every Chicago Street Corner?

[The figure of 20,000 is my own SWAG, based on Chicago geography,]

I can understand the civil libertarian objections to this plan. However, having had much too close personal acquaintance with crime on a few of those corners, I suspect Mayor Daley has plenty of local support for implementing it.