  A series of tantalizing results led to the black hole uniqueness conjecture:
isolated, realistic black holes should settle down to states characterized by
their spin, mass and charge. I argue that generically real black holes will
also possess a `magnetic' shear; equivalently, that the dominant contribution
to their long-range gravitational field should have a `magnetic' (odd-parity)
component. In fact, the Blandford-Znajek process, combined with the axial
anomaly and gravitational gyrotropy, would tend to leave a black hole in such a
state. It seems that the black-hole uniqueness conjecture may apply in a regime
around the hole, but as one approaches future null infinity the `magnetic'
effects become significant. In this far-field regime, the space-time will be
non-stationary, but there will be no radiation.
