Airlines and Veterans Riled by Conduct Unbecoming a Support Dog

WASHINGTON -- It seemed, in retrospect, a bit of a low point -- a medium-size dog racing through an airplane at 30,000 feet, spraying diarrhea toward passengers throughout the cabin.But according to some transportation officials, it was an increasingly typical scene that has stemmed from the growing use of comfort animals on airplanes -- a situation that some injured veterans say is making life harder on them.The airline industry, which has been working to curb the number of comfort animals onbo