There's a national debate over whether fellow passengers should be able to recline their seats. It's caused three flights in the past two weeks to make emergency landings.
One man used the now famous Knee Defender to keep the passenger in front of him from reclining. It lead to a fight so heated his plane from Newark to Denver had to be diverted to Chicago.
Do you recline your seat fully on planes? If not, why? If so, why?
— Erin Burnett (@ErinBurnett) September 5, 2014
An aviation expert tells CNN that diverting a flight is costly. It costs airlines about $6,000 per hour and that doesn't include airport landing fees for some flights.
So why all the fights over legroom?
— OutFrontCNN (@OutFrontCNN) September 5, 2014