How long until the Animal Liberation Front or PETA bombs the zoo to release these "endangered animals" into the world, and how long until we have proven all scientists wrong about the behaviors of dinosaurs because we successfully clone one?
I'm sure PETA and the Animal Liberation Jerks would be eaten by whatever animal they save. In fact, letting them in to the wild could destroy the regular wildlife, so it'd be a generally bad move.
Also, being proven right/wrong would be the whole point. Being wrong just gives you more to learn, and isn't that what science is all about?