Warning: Distressing content and strong language
Samira says she never used to be political.
"I worked in sales in Iran. I sold cosmetics," she tells BBC Panorama.
But that all changed the day her only child was shot dead in front of her by Iranian security forces. Sixteen-year-old Sevda was taking part in protests against Iran's repressive regime that engulfed the country earlier this year - before the US and Israel launched widespread air strikes which killed the country's supreme leader Ayatollah Ali Khamenei.
