The public would be less involved than presently. Science cannot determine that. Chemicals that seem safe today are often recognized as dangerous tomorrow, and that will always be the case. Furthermore, science has no way to judge the consequences of exposure to many pollutants simultaneously. Therefore, decisions about how to treat contaminated swamps will always be largely political.
Scientists are welcome to join the debate, just like any other citizens.
The plain fact is, people are uneasy about strange, unnatural chemicals in their food and water, and even in their local swamp. People are aware of evidence of increased birth defects, developmental disorders, cancer, and other illnesses associated with pesticides, and with strange chemicals leaking from Superfund dumps. In a democracy, people have a right to be concerned, and to advocate that resources be applied to their concerns. That is politics. That is the American democratic system.