I wish to point out that I no longer stand by the views reported in my News and Views article “Immunology: Ways around rejection” (Vaux 1995), which dealt with a paper in the same issue (“A role for CD95 ligand in preventing graft rejection” by D. Bellgrau et al. — Bellgrau 1995). My colleagues and I have been unable to reproduce some of the results of Bellgrauet al., as reported by J. Allison et al. (Allison 1997).