Hazardous imports have been the top story on the evening news for weeks now. But the poor quality of some foreign-made products is only half the story. Before we ever see those products, manufacturing plants in the countries of origin can pose an even greater danger to human and ecological health.

Take India, which is now our biggest foreign source of pharmaceuticals. A just-published study by Sweden's Goteborg University shows that, whatever the quality of the drugs being shipped out of India, they are leaving behind a toxic mess. Even after days in a water-treatment plant, effluents discharged into streams and rivers in one Indian region show concentrations of antibiotics and other drugs at 100 to 30,000 times the levels considered safe.