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Northwestern University Civil and Environmental Engineering Professor James Hambleton explains why he is skeptical of a high-speed tunnel between the Loop and O’Hare, designed by Elon Musk’s Boring Company. Some math may be used in this segment.

[audio http://serve.castfire.com/audio/3516332/3516332_2018-06-15-172232.64kmono.mp3?ad_params=zones%3DPreroll%7Cstation_id%3D3759.mp3]