In September 2020, as part of an investigation into US voter dissuasion tactics employed by the Donald Trump campaign during the 2016 US Presidential Elections, journalist Krishnan Guru-Murthy from Channel 4 News (1982) in the UK finally presented David Carroll with Carroll's own personal data file. Carroll previously was unable to obtain his own data file, before, during, or after filming the documentary up until this point, despite suing British data consultancy company Cambridge Analytica for it, before it ceased trading.
At the time of the release of this documentary, the 'case' of the main aggrieved party featured, Caroll, to find out the 'data' held on him, was - initially - successful (i.e. in Jan. 2019): so he - through his shown onscreen lawyer, Naik- actually 'won': but Caroll wanted more: viz. the source AND the basis of that revealed data held on him, that was used ('harvested') to create the behavioral predictions made (formatted) on him; plus the details of any parties with which that data had been shared - i.e. the curiosity to know how a "mass sentiment" change (as noted in the documentary) might be effected - but which failed (read, was frustrated) when Cambridge Analytica went into voluntary liquidation (administration), which curtails the case with no further defendant.