  The existing anomalies appearing in decays of the form $b\to s \ell^+ \ell^-$
constitute a possible hint for new physics. We point out that modifications to
the SM results due to heavy neutrinos could account for the observed deviations
while satisfying existing constraints from lepton flavor violating processes.
The required mixing angle, however, is an order of magnitude larger than
suggested by recent global fits to lepton flavor conserving processes. We frame
our discussion in terms of a Type-I seesaw model, but it can be made more
general.
