Episode 692: Is the dentist a scam? Can black people get Downs Syndrome? The new PGH airport. Email anxiety. Did C3PO or R2D2 fly? Andrew gets groped every time as TSA Clear but finds a hack for free first-class upgrades. Tucson miniature museum and airplane graveyard. Are bison gross? Learning about Zernike Polynomials. Brett adds fractions trying to prove something no one cares about. Are coffee beans beans or seeds or nuts? A blind guy convinces Brett to salt his coffee.