Hi T.!
NPR had some good reports on, and from, London today. Check out their website - most should be there.
for example - http://www.npr.org/2011/08/09/139276065/why-london-explod...
Will it happen here? It already has. http://en.wikipedia.org/wiki/List_of_riots
What will I do?
Depends on the protest. I have been known to support civil disobedience. I do not support mayhem, destruction and looting. In that case, I would do what many Londoners are doing - hunker down in the evenings, watch the news, and hope it doesn't come to my neighborhood, and hopefully, be a voice of reason to any that I knew who were participating in the mayhem. But, if it did hit my neighborhood, I would protect my family - be that securing my home or finding a safer place to go.
While I uphold the 2nd amendment - I don't think the right to bear arms gives us the right to negligently use those arms against others...especially when tempers and emotions are already at a boiling point. That is what our trained law enforcement and military are for.
What started in London as a peaceful protest over the killing of a young father, has been escalated by predominately young people into rampant, out of control riots for no reason. Several quotes that came out today, from rioters, showed that they are doing it just because they can. "It is fun" "I can take what I want". There is, now, no political message, or social reason for these riots. It is people out of control - a mindless mob intent on terrorizing a city for their own pleasure.