  We show that the Abell Cluster A586 exhibits evidence of the interaction
between dark matter and dark energy and argue that this interaction implies a
violation of the Equivalence Principle. This violation is found in the context
of two different models of dark energy-dark matter interaction. We also argue,
based on the spherical symmetry of the Abell Cluster A586 that skewness is not
the most general quantity to test the Equivalence Principle.
