  We show that the DBI conformal galileons, derived from the world-volume
theory of a 3-brane moving in an AdS bulk, admit a background, stable under
quantum corrections, which violates the Null Energy Condition (NEC). The
perturbations around this background are stable and propagate subluminally.
Unlike other known examples of NEC violation, such as ghost condensation and
conformal galileons, this theory also admits a stable, Poincare-invariant
vacuum, with a Lorentz-invariant S-matrix satisfying standard analyticity
conditions. Like conformal galileons, perturbations around deformations of the
Poincare invariant vacuum propagate superluminally.
