I think semi trucks are good because they employ many americans and give them jobs. The semi trucks are also a faster means of transporting goods. I think a few bad apples in the truck driving community has given truck drivers a bad name, this is true in many venues. Also with utilizing rail it is so much more costly thus the decline of the rail and the birth of the airplane. Because there are fees for a train to utilize rail while there is practicaly none on roads. Enforcing more penalties upon drivers is completely wrong because this is going to force many drivers to quite and encrease the turnover rate so more unqualified drivers are going to be hired. Without semis I think many ways of life would be impacted. I am not against using petro I think it has many more good uses then bad I think what is wrong is urban sprawl I think it paves over nature and makes us more greedy. With urban sprawl we have to drive more which means it uses more petro needlessly also with more driving it induces more traffic accidents. I think that the auto is more to blame then anyother contributer. Because with factories and other plants we can tightly control what filters are being used to help clean up smog and how they are using petro. Where as autos they can contribute more exhuasts becuase users can modify their cars to emit more exhuast I.E. lifted 4 wheel drive truck. Or if they are not maintained properly autos can emit many more toxins. What I think we need is more biodiesel for semis and bus one it will smell a lot better and it will eliminate some of the toxins. Second biodiesel will help reserve petro to more important uses in our daily lives. I am against urban sprawl and the auto more than anything else