Heads up, online shoppers: Amazon and the Postal Service are in a $6 billion tug-of-war over who gets to drop off your packages. USPS wants to open its delivery routes to more retailers, while Amazon is building its own delivery army. If they split, expect changes in shipping speed and maybe even prices. Smaller brands could get a shot at faster delivery, but your next Prime Day order might take a detour! #Business #Industry #Amazon