A U.S.-Canadian anti-whaling activist has been detained in Greenland and faces possible extradition to Japan which has issued an international warrant for his arrest, the Arctic island's police said in a statement.Paul Watson, founder of the Sea Shepherd activist group and the Captain Paul Watson Fo<p><p>https://www.marinelink.com/news/sea-shepherd-founder-paul-watson-detained-515362</p></p>