I really, truly hope that police departments in cities with significant poor black populations are getting ready.
I suspect those most at risk have already had poor black riots of 100-300 in size, though not described as such by the authorities or media.
Such riots are also dependent on a week-kneed liberal city government, that first orders the police to use kid gloves, before panicking and ordering a harsh police response.
Cops go door-to-door in Trayvon town
http://www.freerepublic.com/focus/f-chat/3038090/posts