Well, we don't really know, do we? Bigfoot? No Bigfoot? Bigfatliars? Bigmisunderstoods? And in the spirit of open, collegial debate -- indeed, in the interest of unfettered investigation by believers, if not scientists -- U.C. Berkeley's Hearst Museum of Anthropology has put on display the plaster casts of tracks that some say were made by a real Bigfoot nicknamed "Cripplefoot" because of a gimpy tread. And a Berkeley philosophy prof is defending the right of people to believe, or at least consider without having others bust up laughing hard-heartedly in their face, that there are Bigfoots. Yes!