New details have emerged on the New York air traffic controller who was suspended for allowing his son take the radio and talk to pilots at one of the nation's busiest airports.

According to the Federal Aviation Administration, one day after giving his son access to the control tower at John F. Kennedy International Airport, the controller also brought his daughter to work.

While some pilots seemed more amused than worried by the 'junior' air traffic controllers, the FAA failed to see the humor in the incident and called it a "lapse in judgment."

But outside the FAA, reaction has been mixed.

"Given the child was involved with actual air traffic I do think it was a fireable offense. It was not only a cavalier attitude but a shirking of his responsibilities," aviation attorney Mary Schiavo said.

"I think it was just a little kid trying to have fun," airline passenger Christina Wilson said.

Nevertheless, the FAA insists "these kinds of distractions are totally unacceptable."

Transportation Secretary Ray LaHood concurred and expressed his outrage to a Senate committee on Thursday.

"This is a stunning example of a lack of professionalism, not following the rules, not using commonsense," LaHood told the panel.

For now, the FAA has suspended both the controller and his supervisor pending an investigation.