File photo shows the Nisshin Maru docked at the Tokyo port. Commercial whaling is banned under an international treaty but Japan has since 1987 used a loophole to carry out "lethal research" on the ... more 
File photo shows the Nisshin Maru docked at the Tokyo port. Commercial whaling is banned under an international treaty but Japan has since 1987 used a loophole to carry out "lethal research" on the creatures in the name of science less