people like for example the situation where a person is being saint and the vaccination propaganda dulcie person is very likely later on in the day to see more material about on the vaccinations appearing on facebook is about the interaction between the different. cause which is of facebook itself what's up in instagram so the results system here. facebook is good the power. to stop at least to an extent because one platform. in years not alone in falling victim to think about vaccinations this year the u.s. registered one of the biggest outbreaks of. something that's being put down to misinformation posts on various social media platforms facebook for its part to reduce the ranking of groups our page is spreading. privacy activists and technology expert bill neely told us regulating platforms like once stop is going to prove a tall order. i think it's very difficult to have some casual regulation that covers all sorts of card types of content that might be harmful that actually caters for the different nuances between different cultures and all the different sort of messaging platforms a