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Input: Sarah Shourd was freed in September and returned to the United States. Her fiance  Shane Bauer  and their friend Josh Fattal remain in prison.
 Shourd and their families have denied they did anything wrong. After her release  Shourd said they were hiking in a scenic and relatively peaceful part of northern Iraq and inadvertently crossed an unmarked border with Iran when they were arrested in July 2009.
 Iranian authorities said they freed Shourd as a humanitarian gesture because of unspecified health concerns  though the woman has since said her health is fine.
 Iran warned that it will seize the $500 000 bail posted by Shourd if she does not return for trial.
 The 32-year-old Shourd  from Oakland  California  has not disclosed any plans to return to Iran.
 She said in an interview published Oct. 31 in The New York Times that the three stepped off an unmarked dirt road and inadvertently crossed from Iraq only because a border guard of unknown nationality gestured for them to approach.

Iran sets February trial date for 3 Americans