One in five planes for U.S. flights has not been updated to prevent 5G signals from interfering with the plane's altimeter, which pilots need for landings in bad weather. Starting July 1, when wireless companies are allowed to switch on 5G towers near airports, unequipped planes will not be allowed to land in bad weather, forcing reroutes that could become another source of flight delays.

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As Fuel Taxes Plummet, States Weigh Charging by the Mile
U.S. states could face some hurdles as they experiment with road usage charging programs aimed at one day replacing motor fuel taxes, which are generating less each year, in part due to fuel efficiency and the rise of electric cars.
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