In December 1962, a shooting incident in London involving two other men who were involved with Keeler led the press to investigate Keeler, and reporters soon learned of her affairs with Profumo and Ivanov. But the British tradition of respecting the private lives of British politicians, for fear of libel actions, was maintained until March 1963, when the Labour MP George Wigg, claiming to be motivated by the national security aspects of the case, taking advantage of Parliamentary privilege, which gave him immunity from any possible legal action, referred in the House of Commons to the rumours linking Profumo with Keeler. Profumo then made a personal statement in which he admitted he knew Keeler but denied there was any "impropriety" in their relationship and threatened to sue if newspapers asserted otherwise.