CNN
Greenpeace is trying to stop suspected whalers.
It's been tracking in the Antarctic Ocean.
The environmental group located the whaling fleet
after searching for more than a week.
Greenpeace is warning it will take non-violent action
to stop any whales from being killed.
The most commercial whaling is banned.
Japan operates on a loophole
that does allow scientific research.
Japanese whaling officials say they are doing nothing illegal.