Published May 22, 2023 11:12PM ET Updated May 23, 2023 02:27AM ET © Reuters. By Nathan Howard WASHINGTON (Reuters) - The U.S. Secret Service said it had detained the driver of a rented box truck that crashed into security barriers near the White House on Monday night, perhaps intentionally, but that there were no injuries or ongoing danger. A Reuters witness said investigators found a Nazi swastika flag that apparently came from inside the truck, which crashed into barriers at Lafayette Square, adjacent to the White House grounds. Officers retrieved the flag and plastic evidence bags that had been laid...