Could there ever be a place for captive dolphin shows in responsible tourism?

In 1981 I went to Seaworld in California, aged 8 years old. I saw Shamu the killer whale, and went home with a beloved soft toy Shamu. It was one of the happiest days of my young life. Years later, while researching an article on the impact of captivity on killer whales, I discovered something which shattered my fond childhood memory.