Today's word in question: "safe"

The Environmental Protection Agency is holding public hearings today to review a proposed safe exposure limit for dioxin, a known carcinogen and endocrine disruptor produced as a common industrial byproduct.

It's all but impossible to avoid exposure to dioxin. Research done by the Environmental Working Group has shown that adults are exposed to 1,200 times more dioxin than the EPA is calling safe "” mostly through eating meat, dairy and shellfish "” and mothers pass it on to babies in the womb and in breast milk. A nursing infant ingests an amount 77 times higher than what the EPA has proposed as safe exposure. (Formula is also widely contaminated with the stuff.)