  What is the fundamental reason for Hall Anomaly in Type II Superconductors:
Independent Vortex Dynamics Effect or a Manifestation of Vortex Many-Body
Effect? For a long time researchers in this field had not realized the
importance of vortex many-body effects in the understanding of the so-called
anomalous Hall effect. In this note I give a brief account of the situation in
the light of a recent Phys Rev Lett.
