Another Occupy rally bombed

As of now, at least 2 Occupy protests have been the target of major violence - not counting police riots like the one in Oakland that fractured a Marine's skull and put him in critical condition.
　
On Sunday, a rally in Portland, Maine, was hit by a bomb made from a Gatorade bottle. Now the Occupy Salem protest at Wilson Park in Salem, Oregon, has been bombed too. This occurred back on Tuesday, but The Media's failure to cover it means that folks outside Oregon are only now hearing about it.
　
In the Oregon incident, a bomb was thrown from a car into the park. If the bomb hadn't been built by utter idiots, it could have easily blown out a wall.
　
Meanwhile, there have been hundreds of arrests nationwide against Occupy protesters, but not a single arrest of anyone involved in the bombings. Yet the Tea Party whiners complain that the Occupy movement is receiving preferential treatment.
　
In fact, after the bomb was thrown in Oregon, police who investigated the bomb said no evidence of a bomb was found. Seriously, they said that.
　
Also, in nearby Portland, Oregon, an Occupy activist has been receiving death threats.