[Thasc]

Rather than censoring it on the fly, the device could mutter 'he's lying, he's lying, it's not true' into the child's ear in a respectable, commanding voice. 'Your mummy will be so angry if you think he's right.'

Since we're already assuming solid AI to understand what the speaker is saying, it might as well have enough capacity to whisper counter-arguments to the child until it detects that the child's convictions have been sufficiently reinforced. Automated conditioning!

[6d0debc071]

If we're being evil about it, you don't even need counter arguments. Hook it up to a taser colar and have it give the child a good zap whenever it hears phrases the parents don't like. The child will come to avoid 'bad' opinions all by themselves soon enough.