Episode #5.7
- Episode aired Sep 26, 2011
Dallas investigates the possibility of a global helium shortage, Dr. Yan quizzes shoppers on their knowledge of radiation, and Liz demonstrates new airport security technology that can see t... Read allDallas investigates the possibility of a global helium shortage, Dr. Yan quizzes shoppers on their knowledge of radiation, and Liz demonstrates new airport security technology that can see through clothes.Dallas investigates the possibility of a global helium shortage, Dr. Yan quizzes shoppers on their knowledge of radiation, and Liz demonstrates new airport security technology that can see through clothes.