persuading Con- gress to allow the EPA to weigh costs and feasibility or doing so covertly. Con- gress has not gone along, and the courts, naturally enough, have rejected the EPA's covert efforts to do so.
Other commentators wag their fingers at

ARTS & LETTERS
Congress for passing laws that are impossi- ble to enforce, but Dwyer considers him- self too much of a realist to believe that that will do much good. He suggests that regulators work behind the scenes to win informal concessions wit...