Sitting in a hotel bar, Alexander Nix, who runs the political data firm Cambridge Analytica, had a few ideas for a prospective client looking for help in a foreign election. The firm could send an attractive woman to seduce a rival candidate and secretly videotape the encounter, Mr. Nix said, or send someone posing as a wealthy land developer to pass a bribe. We have a long history of working behind the scenes," Mr. Nix said. The prospective client, though, was actually a reporter. The encounter was secretly filmed as part of a monthslong investigation into Cambridge Analytica, the data firm with ties to President Trump's 2016 campaign. The results of Channel 4's work were broadcast ... days after reports ... that the firm had harvested the data from more than 50 million Facebook profiles in its bid to develop techniques for predicting the behavior of individual American voters. Less noticed has been the work that Cambridge Analytica and its parent company, the SCL Group, have done outside the United States. "Many of our clients don't want to be seen to be working with a foreign company," he told the Channel 4 reporter. "We can set up fake IDs and websites." Mr. Nix ... boasted that Cambridge Analytica employs front companies and former spies on behalf of political clients. The information that is uncovered ... is then put "into the bloodstream to the internet," said Mark Turnbull, another Cambridge executive. "Then watch it grow," he added. "It has to happen without anyone thinking, 'That's propaganda.'"