Public health historian Gerald Markowitz reminds us that the problem of lead poisoning is anything but new.
First, Susan Rice, the U.S. ambassador to the United Nations, pulled her name off the list of potential Secretary of State nominees.
Now Chuck Hagel, the former Republican senator, is facing criticism even before President Barack Obama nominates him to be Secretary of Defense.
Critics say he wasn’t strong enough in his support for Israel when he was in the Senate, and some Republicans believe he wasn’t really a Republican by the time he left the Senate.
Robin Young and Jeremy Hobson are hitting the road to cover the elections. Our Tumblr brings you behind the scenes.