  Scarpa et al. (2003) have used their new measurements of the line-of-sight
velocity dispersion at radii R ~ 30-45 pc in omega Centauri to argue for
modifications to Newtonian dynamics (MOND) at low accelerations in the outer
reaches of this globular cluster. Alternatively, any such evidence could be
taken as an indication of the presence of an extended dark-matter halo. We show
that the data of Scarpa et al. are in fact consistent with earlier observations
by Seitzer and by Meylan et al., which are in turn well described at large
radii by simple, self-consistent dynamical models. There is no need to invoke
MOND or dark matter to explain the current data.
