© Licensed to London News Pictures. 29/03/2018. London, UK. Cambridge Analytica whittleblower CHRISTOPHER WYLIE speaking at a demonstration held by Fair Vote, outside the Houses of Parliament in London, calling for a fair vote on the EU referendum. Whistleblowers Shahmir Sanni and Christopher Wylie both spoke at the event attended by a small number of people.. Photo credit: Ben Cawthra/LNP