Beware, today's podcast contains low-flying pterosaurs! But first, we start with a couple of Katrina-related items. We begin with a report on what, if anything, US engineers can learn from flood defense systems overseas. We'll also hear from a Dutch company that is supplying a very morbid, but very necessary technology along the Gulf Coast. And, we take you to Indonesia, to hear about the latest in the battle to eradicate polio. That's followed by news of a new way to take insulin. Then...it's ptime for pterosaurs, and a big shout-out to Mary-Jo Valentino, who leaves The World and the podcast today.