For working dogs....?

In my opinion: No. There's a dog for every single real world purpose out there. Some people argue for the "hypoallergenic" Labradoodle and service homes. I say: Why not use a purebred Standard Poodle...they're just as capable of service work as a Lab or a Labradoodle. They're large, physically capable dogs of extreme intelligence and have been used as service dogs since near the beginning! As far as terrain and weather are concerned, let's say I want a protection dog/guard dog in a hot place, some GSDs and Malinois do fine in hot weather, American Bulldogs do great in hot weather. Let's say for an extremely cold climate, the GSD can tolerate sub-zero temperatures, the Russian Black Terrier was designed for weather that's even colder. Not only is there a dog for every purpose, there's a choice between several breeds for every purpose! S&R can be done by ANY breed with the drive to do it, many S&R dogs are shelter rescues. Many detection only dogs are shelter dogs (unlike the person above me said, it's legal, and many departments use MUTTS for narcotics, contraband, and explosives detection). Also a lot of the GSDs and Mals serving as PSDs don't have papers...some PDs have mixed GSD/Mals as dual purpose dogs. I have no problems with this if the dog is capable of the work BUT these situation arise because these mixed breed dogs, dogs without papers, and dogs with minor flaws (like long haired GSDs) are cheaper and PDs work on a limited budget. We have a breed for everything, we even have mutts who can do the job of some of the purebreds that already exist, there's absolutely no need to try to create a new breed.