By Tim Elliott, SMH, May 7, 2011 - They're freedom fighters, not terrorists, says Professor John Whitehall. ''The UN is ineffective, but Australia should do something on its own, like revoke [Sri Lankan President Mahinda] Rajapaksa's invitation to the Commonwealth Heads of Government Meeting in Perth in October. We should demand they let Tamil civilians go from their concentration camps. And they should allow the [Red Cross] access to all the Tiger soldiers they have in their camps. Until then, Australia should have nothing to do with this lot.''