A missing mouse grounded a Swiss airliner for more than a day as airline officials pumped carbon dioxide into the plane's cargo hold to kill the rodent Houdini. the mouse, being transported to a laboratory from Mexico, escaped from its container on a flight on Wednesday, a spokenan for Swiss International Air Lines said on Friday. to prevent the rodent from gnawing on cables on future flights, the airline pumped carbon dioxide into the Airbus hold and let it stand for 24 hours. The airline had to cancell a flight from Zurich to New York and back as a result, and diverted a flight from Geneva to pick up stranded passengers.