Tim Marshall, the author of "Worth Dying for: The Power and Politics of Flags," explains why American flags are reversed ... flag. And they take it so seriously that it must always face forward.

Fire Department brass ordered an East Village ladder company to remove its “red line” American flag honoring the squad’s six brothers killed on 9/11 – after a neighborhood resident ...

The flags are shown in reverse ... you're moving forward, the flag should be flying behind you, so the stars would be on your front," said Laurel Clewell, adjutant for the American Legion ...

As protests over policing continue to convulse cities throughout the U.S., one symbol keeps showing up: a black-and-white American flag with one ... a “thin red line” used during the Crimean ...