  Both traversable wormholes and warp drives, concepts originally developed
within the context of science fiction, have now (for some 30 odd years) been
studied, debated, and carefully analyzed within the framework of general
relativity. An overarching theme of the general relativistic analysis is
unavoidable violations of the classical point-wise energy conditions. Another
science fiction trope, now over 80 years old, is the tractor beam and/or
pressor beam. We shall discuss how to formulate both tractor beams and/or
pressor beams, and a variant to be called a stressor beam, within the context
of reverse engineering the spacetime metric. (While such reverse engineering is
certainly well beyond our civilization's current capabilities, we shall be more
interested in asking what an arbitrarily advanced civilization might be able to
accomplish.) We shall see that tractor beams and/or pressor beams can be
formulated by suitably modifying the notion of warp drives, and that, as for
wormholes and warp drives, violations of the classical point-wise energy
conditions are utterly unavoidable.
