Doubtful. Most of those people who get exposed don't really follow politics. Yes, they are lefties - often times, far lefties - but most lefties don't actually follow politics that closely. Maybe they've heard of Veritas or O'Keefe in passing on Twitter or Reddit, but they certainly aren't on guard. The genius of James O'Keefe is that he isn't just going up to them asking prying questions. He actually builds connections with these people, sometimes over MONTHS. He's basically like a spy, or an infiltrator.