  The symmetry of Nature under a Space Inversion is described by a Parity
operator. Contrary to popular belief, the Parity operator is not unique. The
choice of the Parity operator requires several arbitrary decisions to be made.
It is shown that alternative, equally plausible, choices leads to the
definition of a Parity operator that is conserved by the Weak Interactions. The
operator commonly known as CP is a more appropriate choice for a Parity
operator.
