DENVER -- Air traffic controllers are well paid, averaging $136,000 per year.
However you have to be under 31-year-old to start, training takes years.
The attrition rate continues to rise along with a growing shortage.
There are not enough air traffic controllers to smoothly handle the millions of fliers.
Denver International Airport is expected to set an all-time record for passenger traffic this holiday season, but behind the scenes, it's all time low for a critical staffing crisis is gripping airports around the country and here in Denver.
A major part of the problem is the FAA changed the way it hires controllers about two years ago.
They have recently been hiring more of them off the street, instead of candidates with military or college aviation training.
Now many of them don't make it through training.