The oil slicks don't match; the flotsam found in the water doesn't connect; the stolen passports could be just a coincidence. Forty ships and 34 aircraft from nine countries have not turned up any evidence. There's no clue as to what happened to Asiana Airlines Flight 214 with 239 people on board. With all the radar, sonar and satellite signals involved in modern air traffic control, how could the plane have disappeared? Thomas Anthony is Director of the Aviation Safety and Security Program at the University of Southern California.
KCRW
