  In the past few years charged kaon experiments have indicated possible scalar
and tensor couplings in semileptonic kaon decays(K --> pi e nu). These
couplings, if correct, are not predicted by the Standard Model and may indicate
the onset of new physics. We present a summary of the existing data and a new,
precision measurement of these couplings in the neutral kaon system based on a
3% subset of the data taken by the KTeV (E799) experiment at Fermilab.
