  Recent proposed ``loophole-free'' Bell tests are discussed in the light of
classical models for the relevant features of optical parametric amplification
and homodyne detection. The Bell tests themselves are uncontroversial: there
are no obvious loopholes that might cause bias and hence, if the world does,
after all, obey local realism, no violation of a Bell inequality will be
observed. Interest centres around the question of whether or not the proposed
criterion for ``non-classical'' light is valid. If it is not, then the
experiments will fail in their initial concept, since both quantum theorists
and local realists will agree that we are seeing a purely classical effect. The
Bell test, though, is not the only criterion by which the quantum-mechanical
and local realist models can be judged. It is suggested that the
quantum-mechanical models given in the proposals will also fail in their
detailed predictions. If the experiments are extended by including a range of
parameter values and by analysing, in addition to the proposed digitised
voltage differences, the raw voltages, the models can be compared in their
overall performance and plausibility.
