DOJ Sues Visa for Alleged Debit Card Monopoly

The justice department is suing Visa for allegedly monopolizing the debit card market. The DOJ claims the company forces businesses to use its network.
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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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