This from a study released yesterday by the CDC:

"About 1.6% of young children tested from 1999 to 2002 had elevated levels of lead, which could lower their intelligence and damage their brains, compared with 88.2% in the late 1970s and 4.4% in the early 1990s."

We may no longer have lead around to damage kids' brains but, never fear: TV, cell phones, junk food and video games have taken up the slack.