As Tegan says, they are such huge animals that they take ages to die, very cruel.However, for us, whaling is firmly in the past.Lots of things in the past that we now consider cruel; wife beating, dog fighting, bear baiting, cock fighting etc.Apart from the bear baiting of course, the other things do go on still, but furtively and not publicly, and can be prosecuted.We can't always look at things with 21st century eyes.Killing millions of buffalo in North America was considered sensible at the time.I don't think Japan cares [or China] what the world thinks of it for killing so many whales and sharks.I won't be watching this programme.