In Iran, a woman is expected to wear a hijab, or head scarf, in public. Some women want to, some don't, but it's basically not optional. Taherian's public images showing her uncovered head have been denounced as "immoral" by the Iranian government, and they've also gotten her a lot of threats. A spokesman for Iran’s Ministry of Culture and lslamic Guidance, Hossein Noushabadi, released this statement about her and another actress who defended her: "As far as this ministry is concerned, these two individuals are no longer considered to be artists any more and do not have any right to act." A TV show starring Taherian was yanked off the state television network schedule soon after.
Looking through Taherian's Instagram, there is a clear moment when she goes from wearing the hijab to casting it aside, and some vague posting about taking action that may give us a window into her decision to take it off:
Taherian has landed in the United Arab Emirates, where she's seeking asylum. It sucks that this is happening to her, but it seems like she's still living her best life. Here's one of her more recent posts on Facebook, where she's straight chilling after a workout: