Sometime during the night not long ago, Dean Karnazes sat bolt upright in bed and exlaimed: "Fifty marathons in fifty days ... in all fifty states! That's it!" Unfortunately, there was no one there to humanely smother him with his own pillow, and so here we are.

''The biggest logistical challenge is how to bring my family [wife and two children] with me,'' Karnazes said.

Yes. We're sure that's how your family sees the challenge: As "logistical."

50 Marathons, 50 Days, 50 States [Chicago Sun-Times]