The Pyramids in Bosnia and Testing for Truth

In class yesterday we watched a brief news clip about the discovery of pyramids in Bosnia. How can we evaluate the validity of this claim? In previous classes we have seen that different tests can be applied to knowledge claims. We can test by reasoning, by observation, by seeking a reliable source, by emotion. What tests are used to validate the claim in Bosnia? What tests can invalidate it? What do you personally think about the claim?