DOJ Files Antitrust Case Against Visa Inc.

The U.S. Justice Department is set to file an antitrust lawsuit against Visa, alleging the company has illegally monopolized the U.S. debit card market.
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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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