  We re-examine the so-called Nambu-Jona-Lasinio mechanism suggested by Song,
Xu and Chin in breaking the supersymmetry in the Wess-Zumino model and show
that this mechanism cannot be justified without assuming special effects
between fermions. The fermion condensation suggested by them corresponds to an
unstable vacuum configuration. As a result, there is no fermion condensation
and no supersymmetry breaking in the model discussed by them.
