The recommendation was one of 14 determined after a nationwide review of security at airports prompted by a fatal shooting at Los Angeles International Airport last fall.

The 25-page report to Congress was obtained by The Associated Press. Congress will now review the recommendations.

The AP has reported that the two armed officers at the LAX terminal had left for breaks and were out of the terminal at the time of the shooting. Airport police decided months earlier to have officers roam terminals instead of staffing checkpoints such as the one approached by a gunman.

The Transportation Security Administration conducted its own review of security at nearly 450 airports nationwide after the Nov. 1 shooting at LAX that killed TSA Officer Gerardo Hernandez — the agency's first line of duty death. Two officers and a passenger were also wounded.