When writer Florence Williams was nursing her second child, she read a research study about toxins found in human breast milk. She decided to test her own breast milk and shipped a sample to a lab in Germany.
What came back surprised her.
Trace amounts of pesticides, dioxin and a jet fuel ingredient — as well as high to average levels of flame retardants — were all found in her breast milk. How could something like this happen?
In 2002, Rafe Sagarin was working in Washington, D.C., as a science adviser. It wasn't long after the Sept. 11 attacks, and Sagarin started paying attention to the security measures on Capitol Hill.
"I'd watch these other Capitol Hill staffers and I noticed that they'd just put their hand over the keys in their pockets so they didn't have to waste 30 seconds putting it on the conveyer belt though the security screening — and that didn't set off the alarm when they did that," Sagarin tells host of weekend All Things Considered Guy Raz.