Residents in some states may soon need a passport to travel by plane to other states.
These states have not yet introduced the standards required by the 2005 Real ID Act which demands stricter regulations for state-issued IDs. The deadline for the new standards expires on January 22nd, 2018.
Travelers from states that miss the deadline will risk being detained at airport security and prevented from boarding flights if they don't have a passport or other TSA-approved form of identification such as a green card, border crossing card or military ID.