Interesting discussion on why it benefited colonising empires of the 15th, 16th and 17th century to label the foreign natives as cannibals.
..when Europeans invaded the New World, they saw cannibalism as the quintessential expression of savagery and evil, and used this as a justification for employing violent means to subjugate native people.Maybe this mirrors aspects of the modern War On Terror? Except you replace the word 'cannibal' with the word 'terrorist'; Israel sucessfully used this tactic to justify the invasion of Lebanon in July of this year.