Good post. I got acute bronchitis when I first started commuting. The day I felt the tickle in my throat I remember having to breathe really heavy fumes.
Want to know the real solution to most of our problems - Biodiesel. The fumes are actually BENEFICIAL to the environment. Diesel engines run smoother and quieter on biodiesel as it has more lubricity. ....AND...American farmers would have to be put back to work in droves to grow the necessary resources to make this stuff. Do you really think we'd give a rat5 a55 about the middle east if our main source of fuel was grown in our own backyard...but I digress.