An air traffic controller has been found stabbed to death at the EuroAirport outside Mulhouse, France, near the Swiss and German borders. Police say the 34-year-old was found in a pool of blood in an office in the control tower that is accessible only with an identity badge. Prosecutors have opened a murder investigation, French reports say. The victim, a married father of one who has not been named, was a senior official at the airport. A spokesman for the civil aviation authority, the DGAC, said the victim, who had worked at the airport since leaving education in 1998, was...