Uncertain futures. This week Matter of Fact takes a closer look at the civil unrest in Iran through the eyes of two sisters who fled their homeland, and who have spent decades documenting alleged abuses. Now their findings are being used in a UN investigation into the Islamic Republic of Iran. Plus, the Princeton student who created software to tell if school papers were written by humans or with the help of artificial intelligence. And, how soon-to-end federal funding for pandemic measures could leave long-haulers in the lurch.

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