After all the talk by Congressmen Boustany and Landry and others, why so few? The industry is highly automated. To build a petrochemical plant, you need many construction workers for a temporary period, and then their job is over. To run a petrochemical plant, you need a small number of highly trained engineers, chemists, and operators to keep watch over panels of gauges and to know what to do when there’s trouble. Then you need a few repairmen such as Lee Sherman.