Why Aren't Seat Belts Mandatory in School Buses?

It is amazing how strict vehicle restraining laws have become for parents with young children. In the state of Iowa, a child must be restrained in a car seat or booster seat until they are 8 years old. However, school buses are exempt from this law. School buses are even exempt from having any type of seat belt or safety restraint whatsoever! Why???

After watching this video, I think you too will question why school buses do not have any seat belts. (The driver of the bus swerved to miss a car in its path and in the process rolled the school bus. All the children in this accident escaped with only cuts and bruises, luckily. This could have been much more severe, though. Notice how all the kids are tossed and one side gets bunched up to the other. Death and permanent injuries could have been easily possible in a similar situation.)

http://www.killsometime.com/video/video.asp?ID=312