Eoin Ó Broin (Dublin Mid West, Sinn Fein) | Oireachtas source

First of all, with respect to the particular advertisement, a proper way of characterising it is that there were not 17 different versions of the advertisement, it was the same advertisement in that instance. What we were interested in doing was seeing how different demographics would react to it. As Deputy Higgins knows, it is a facility Facebook provides and therefore you might have had the advertisement targeting people in geographic area or an age group. We do not store any of the information arising from that. Facebook stores it. The information is fully anonymised. The only thing you get back from Facebook is the Facebook analytics in terms of the anonymised responses to the advertisements.