OFFICER DOWN IN CHICAGO: Face-down injured police officer attacked in street with 2×4 [GRAPHIC VIDEO, STILL PHOTO]
Chicago is such a wonderful, welcoming bucolic city, right? Oh wait. Chicago? I misspelled "MURDER CITY USA." Under the topic of "Life in the Blue Zones," an incident Friday evening linked to the Mexican Independence Day celebrations left one Chicago cop seriously maimed. So far there hasn't been a peep…