Counter-terrorist agent Eugene Gutierrez, who suffers from flashbacks of his wife’s death, is contacted by a young time-travel agent from his own future with a plea to stop Gutierrez’s own daughter from setting off a chain of terrorist events.
It is possible to create a set of coherent relationships between individual tachyons, similar to quantum entanglement.

Variants

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  1. “Backlash” by Nancy Fulda, in Asimov’s Science Fiction, September 2010.
    2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Nancy Fulda