The future of the Gulf state of Bahrain remains uncertain after 18 months of street protests inspired by the Arab Spring. Some of the most outspoken Bahraini critics of the ruling Khalifa family are behind bars, and violent clashes between police and demonstrators continue. Maryam Al-Khawaja is a prominent human rights campaigner whose father was sentenced to life in prison for plotting to overthrow the government. Who will win the fight for Bahrain's future?

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