Travel Expert: The U.S. Needs Its Next TSA PreCheck

Geoff Freeman, president and CEO of the U.S. Travel association, explains why other nations are outcompeting the U.S., and the innovations that would put American back on top.
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Can NYC Finally Cool Its Subway?
Why is the NYC subway platform so hot? One rider built his own sensor network to find out. We explore the geothermal fix the MTA is piloting right now.
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