The Utility of Time-Symmetric Quantum Counterfactuals: A Response to   Kastner
  Kastner's (Philosophy of Science 70, 2003, pp. 145--163) recent objections to the counterfactual usage of the time-symmetric Aharonov-Bergmann-Lebowitz rule by the author, especially her claims that the resulting time-symmetric quantum counterfactuals are vacuous or invalid, are examined and shown to be unfounded or beside the point. 
U. Mohrhoff