Today marks the two-month anniversary of the beginning of the Occupy Wall Street movement, which started when protesters began setting up tents in New York City Sept. 17. And following a police raid of Zucotti Park, renamed Liberty Square by activists, occupiers in the Big Apple are marching through the streets of Manhattan en masse right now, following an afternoon of demonstrations intended to shut down Wall Street that resulted in 175 arrests and numerous instances of police brutality. You can watch the livestream here. It's an exciting, chaotic, and historic scene.

Meanwhile, here in the Bay Area, expectations are high that a police raid of the Occupy San Francisco encampment is imminent. Two events have been planned for tonight, according to a text update: a 7 p.m. mass nonviolent action training for responding to a raid, and 10 p.m. rally and dance party at Justin Herman Plaza.