FILE- In this April 1, 2017, file photo, a service dog named Orlando rests on the foot of its trainer, John Reddan, of Warwick, N.Y., while sitting inside a United Airlines plane at Newark Liberty International Airport during a training exercise in Newark, N.J. Trainers took dogs through security check and onto a plane as part of the exercise put on by the Seeing Eye puppy program. If your pet must travel, experts say that the cabin is safer than the cargo hold. Pets too large to fit in an under-seat carrier must go cargo unless it's a service or emotional-support animal. (AP Photo/Julio Cortez, File)
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