Thanks. No, that's not me.
As far as security threats, if SS isn't screening everyone who gets near W for weapons, they're not doing their job. And someone with something serious in mind isn't going to dress as a protester, they're going to dress as a supporter in order to get close.
As far as the 'violent nature' of leftist protesters, be assured that they think the very same of the right, and they'll use your very own criteria to deny you free assembly and speech in the future.