The Purpose That Will Scare You
Using animals like this is sadly, too common. A whale would be able to move freely across the ocean. It would gather valuable information and can do a lot of bad things to the enemies of the state. The people behind all of this would know its precise location 24/7 and can capture the whale if needed.
This also means that the whale could be trained to do other things, even worse things and that he will remain a prisoner his entire life. Luckily the fishermen were able to remove the harness. Now, it is impossible to find the whale and capture it again. This is possible only if the whale doesn’t have a transmitter inserted into flesh or skin.