text: Lumen Gentium, from Vatican II, tells it differently.
  
  "Although the bishops, taken individually, do not enjoy the privilege of infallibility, they do, however, proclaim infallibly the doctrine of Christ on the following conditions: namely, when, even though dispersed throughout the world but preserving for all that amongst themselves and with Peter's successor the bond of communion, in their authoritative teaching concerning matters of faith and morals, they are in agreement that a particular teaching is to be held definitively and absolutely. This is still more clearly the case when, assembled in an ecumenical council, they are, for the universal Church, teachers of and judges in matters of faith and morals, whose decisions must be adhered to with the loyal and obedient assent of faith."