I have a question...sort of food for thought, I guess. Although I do agree that there are dangers involved with a fully reclined seat in an accident, I have to ask, what, exactly, would be considered to be reclining and what would be considered to be upright? If, as suggested in the article, a car would not start unless the seat were upright, at what point of recline does the car fail to start?

On an airline, seats must be in the "full upright position" during takeoff and landing. In an automobile, that may not be possible for everyone.

My husband is a tall man with a long upper torso. In most cars, his head hits the roof even with the seat slightly reclined; therefore, he has to put the seat back further than is comfortable just to get an inch or so of headroom--and this is true whether he is the driver or the passenger.

I tend to situate my seat as far back as I can and still reach the pedals when driving or so my knees don't hit the glovebox as a passenger, then adjust the recline of the seat slightly for lower back comfort. I doubt either my husband or I recline into the "danger zone" but I am just curious who the author proposes should determine what is reclined too far and what is not.

Thank you for the opportunity to insert my "say-so".