WGN Radio 720 - Chicago's Very Own
by: Curtis Koch
PHOTO: A spectator looks on as the Chicago River is dyed green ahead of the St. Patrick’s Day parade in Chicago, Saturday, March, 16, 2013. With the holiday itself falling on a Sunday, many celebrations were scheduled for Saturday because of religious observances. (AP Photo/Paul Beaty)
Tom Rowan from Rowan’s & Butler’s talks to Pete about the dye and the process of making the river green.