We may see some slightly longer TSA lines, but will be watching whether or not we need to encourage passengers to get here early," a Massport official said.

"We have a plan in place," Velez said. "We're going to be pulling aside and identifying individuals who do not have a REAL ID compliant ID and pulling them out of line, so that those who do have it will be able to go through the line and keep going."

People lined up for the TSA checkpoint reveal their thoughts on the government's handling of the REAL ID implementation at Atlanta's Hartsfield-Jackson Airport on day one. (Robin Rayne for Fox News Di