the ex-nurse never had a chance of her message being seriously considered. an unknown single person or even a small group of strangers blaring through a megaphone at a sceptical crowd has close to zero credibility regardless of the truth of the message. she was perceived as an eccentric, unwanted irritating intrusion in an already tense situation so the people she was trying to reach automatically became defensive. it was totally predictable. if you want to reach people you can't shove the truth down their throats or shout it in their faces. you have to understand where they are coming from and devise a strategy that has a chance of success.