DAVID GREENE, HOST:
Good morning. I'm David Greene. It's been a tradition in the Windy City for 50 years. The water in the Chicago River is dyed green for St. Patrick's Day. Only this year, some residents have a question: Can you dye ice?
That might be the challenge if the river doesn't thaw in time. Organizers are optimistic, even if it means using a tug boat to break up the ice. I am tempted to believe them. The group that dyes the river and unclogs it - as needed - is the local Plumbers Union.
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