  A modified version of Young's experiment by Shahriar Afshar demonstrates
that, prior to what appears to be a ``which-way'' measurement, an interference
pattern exists. Afshar has claimed that this result constitutes a violation of
the Principle of Complementarity. This paper discusses the implications of this
experiment and considers how Cramer's Transactional Interpretation easily
accomodates the result. It is also shown that the Afshar experiment is
analogous in key respects to a spin one-half particle prepared as ``spin up
along $\bf x$'', subjected to a nondestructive confirmation of that
preparation, and post-selected in a specific state of spin along $\bf z$.
  The terminology ``which-way'' or ``which-slit'' is critiqued; it is argued
that this usage by both Afshar and his critics is misleading and has
contributed to confusion surrounding the interpretation of the experiment.
Nevertheless, it is concluded that
  Bohr would have had no more problem accounting for the Afshar result than he
would in accounting for the aforementioned pre- and post-selection spin
experiment, in which the particle's preparation state is confirmed by a
nondestructive measurement prior to post-selection. In addition, some new
inferences about the interpretation of delayed choice experiments are drawn
from the analysis.

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