Dear Editor, I was listening to some blather on the radio about an idea to tax by mileage instead of by gallon of fuel. What this supposedly would do is encourage environmentally friendly behavior by "punishing" people who "drive too much." But what it will really do is shift the tax burden to those people who must commute distances to work, which means those people whose jobs are not high tech or white collar enough for connecting to the office by computer, which means the entire tax burden would fall on the mostly-minimum-wage earners who do physical work and who live outside the pricey urban zones. Another idea born in irrational-government hell, sheesh.