Iran has summoned an American woman to return to the country on February 6 to stand trial for spying along with two other U.S. citizens. Sarah Shourd, her fiancé Shane Bauer and their friend Josh Fatal were arrested in 2009 while hiking near the Iraq-Iran border. Shourd spent 14 months in jail before being released on bail in September. Iran has warned it will seize the $500,000 bail if she does not return. Bauer and Fatal have been held in an Iranian jail for more than 18 months. On Monday, several international figures, including actor Sean Penn, MIT professor Noam Chomsky and retired Archbishop Desmond Tutu of South Africa, issued an appeal for Iran to release the two men still detained.