MILWAUKEE -- The secret bunkers that keep your smartphone working even in a natural disaster. Have you ever noticed that your smartphone continues to work even during a power outage? That's because of facilities like the one Verizon invited us to take a look at. This super secret facility houses batteries, diesel fuel, and servers that come together to keep you connected during an emergency. The bunkers are reinforced and many of them are hidden in plain sight. They are designed to withstand the most extreme conditions so that you can always be connected with your loved ones.
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