  In a recent Letter, Shen et al have detected a large anisotropy of the
superconducting gap in Bi2212, consistent with d-wave symmetry, from
photoemission spectroscopy. Moreover, they claim that the change in their
spectra as a function of aging is also consistent with such an intrepretation.
In this Comment, I show that the latter statement is not entirely correct, in
that the data as a function of aging are inconsistent with a d-wave gap but are
consistent with an anisotropic s-wave gap.
