Public Broadcasting must know somebody

So I'm sitting here at the computer reading, while the little kid watches Sesame Street. I hear this adult woman's voice talking to the monsters, and I think (in that voice reserved for times when I'm not really that concerned about the answer, just throwing out the question in an alternate-state-of-consciousness sorta way), "That voice is familiar. I wonder who it is?" After a few more seconds, I come out of my computer trance and glance around the corner to identify the voice.

It's Laura Bush.

Who knew Sesame Street had so much clout?