REAL ID

The U.S. will require enhanced identification for many air travelers starting May 7. The policy stems from a law adopted 20 years ago, but not everyone is ready.

The original deadline for the Transportation Security Administration and other federal agencies to only accept REAL ID-compliant cards was back in 2008.

It's been more than a decade since Congress passed the REAL ID Act. It is based on recommendations from the 9/11 Commission, which set standards for…