[Tails-dev] Tails Safety

Hi there

I am writing to find out if tails is a safe platiform to use for political activists or dissidents? I am not an expert on the Tails system itself but I did some research and came accross an article that said Tails was compromised by Facebook by exploiting a vulnerability in the video player in Tails which was used to expose users of the system. Has Tails patched that vulnerability/exploit and is the system safe to use now or can governments use the same or similar exploit to that of Facebook to find out the identity of Tails users?
Best regards.

Link:
https://www.vice.com/en/article/dyz3jy/privacy-focused-os-tails-wants-to-know-how-facebook-and-the-fbi-hacked-it