  We consider three possible manifestations of physics beyond the Standard
Model, and the relations among them. These are Lorentz non-invariance (LNI),
violations of the Weak Equivalence Principle (WEP), and indications of
time-varying nuclear decay constants. We present preliminary results from a new
experiment indicating the presence of annual and subannual periodicities in
decay data, and discuss their implications for physics beyond the Standard
Model.
