OAKLAND, Calif. (AP) — The tear gas clouds have cleared, graffiti has been scrubbed off buildings and shattered glass has been swept away.As downtown Oakland attempts to get back to normal — which for now seems to include a massive Occupy Wall Street tent encampment in front of city hall — the costs of the movement on the long-struggling city are just starting to come into focus.And the divisions over the violent tactics that capped an otherwise peaceful day of protest may be taking a toll on the movement itself.In contrast to New York, Oakland has spent decades on the cusp, a tough, blue-collar town that struggles with poverty and crime.City politicians at a chaotic meeting Thursday night homed in on the price of business lost because of the protests.