The chemists of old are today's FDA. Here's who knew:
H. E. (the H E stands for Healthful Enough)
Karen M (the M stands for Magnesium)
Nancy K (the K stands for Potassium)
And now, a question sure to rattle Obama (at least as sure as anything McCain could dish out tonight, short of calling him Osama):
What words are microprinted repeatedly in the borders of the latest $5 bill series?