Today as I drove to pick up the kids from school, I did some thinking in traffic on the freeway. I was completely surrounded by tractor-trailers. They are always there, but usually I only peripherally notice them. Today they had my full attention. I felt the rumble as one would drive past me. I watched the black smoke come out as they drove. I slowed down as one would merge in front of me, then change lanes because I did not want my little car in between two of those big semis.I was think....

