Clearly intended to constrain anti-Chinese government propoganda, it nonetheless sounds like a good idea to me that everyone should adopt.
This tech is deeply dangerous imo.

'The Chinese government just made it illegal to pass off deepfakes or other AI-created media as legitimate.'
'... anyone who uses artificial intelligence or virtual reality tech to synthesize realistic media will have to disclose that their creations aren’t real life.'

futurism.com/the-byte/china-makes-deepfakes-illegal?utm_medium=email&utm_term=0_03cd0a26cd-187a84e8dc-246888077&mc_cid=187a84e8dc&mc_eid=092f9d027b&utm_source=The%20Future%20Is&utm_campaign=187a84e8dc-EMAIL_CAMPAIGN_2019_12_02_07_02

Interestingly, that article also states that California has already passed a similar law.
' China’s new law bears similarity to a California law enacted in October.
  California doesn’t specifically mention deepfake tech by name — instead, it makes it illegal to publish misleading media that could damage a candidate’s reputation or deceive voters.'

That seems to take the concept a stage further, and lying politicians like our beloved Bojo and Gove would need to beware!
All countries should do the same.