If you fly without a REAL ID, the TSA may now charge you a $45 fee

Passengers walk through the entrance of a TSA PreCheck in Terminal one at O'Hare International Airport Wednesday, Feb. 1, 2017, in Chicago

Armando L. Sanchez/Chicago Tribune/Tribune News Service via Getty Images

• A driver's license is officially no longer enough to fly within the US without paying a fee.
• The TSA is now charging travelers $45 if they show up without a REAL ID, passport, or Green Card.
• The new fee will apply only to domestic travelers.

While...