Can Someone Please Answer this question?

I have been cruising this site and must say I find it very interesting and helpful.

I see a lot of post from people who have been convicted of a felony... and want to drive a truck.

One thing I don't understand.

1) Why is it so difficult for a Felon to get a job as a OTC driver?

2) Why is it so difficult for a Felon to get a job as a truck driver?



I can understand if an excon wants to be a Teacher, Cop or Judge... I think that poses a problem... but a truck driver?

Please help me understand this...

Thanks!