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Sam Heller, an expert on Syria, thinks that the US should evacuate the country\u2019s residents. \n \nAlso: a physicist who always dreamed of working in the US says it\u2019s no longer the \u2018global centre of science\u2019; we revisit Orlando, Florida, one year after the Pulse nightclub shooting; a grandmother from Queens, New York, shares a shocking personal secret; and an orchestra conductor turns the fence on the US-Mexico border into a musical instrument. \n \n(Image: Idleb is a city in north western Syria. Credit: Omar Haj Kadour/Getty Images)