Follow-up: More Sludge Slinging: How Safe Is That Dump?

That sludge dump next door that the Environmental Protection Agency says is safe? One expert at the Centers for Disease Control recommends you keep clear.

According to the EPA, Class-B municipal waste is safe for fertilizing crops and revegetating surface mines. But, says CDC senior industrial hygienist JOSEPH COCALIS, who talked to TIME not as a CDC spokesman but as a private citizen, "I personally would not want to eat food grown with human waste." The problem, Cocalis says, is that Class-B sludge is "biologically active" when dumped. The EPA places a 30-day restriction on public access, but pathogens can survive...