The enemy is a militarized state, which has become top heavy by endless wars, and which is financed by Wallstreet's sleight of hand banksters, aided and abetted by a corrupt body of politicians and media. These wars only benefit corporate wealth and provide 'raison d'etre' for the security state: a direct transfer of your taxes into a corporate war-prison-torture-machine (ultimately stacked against you). Through the media this violence, poverty and inequality are accepted as 'normal events' --even infecting our own minds.
"Occupy Wallstreet" has to be about decolonizing Washington-- money out of politics--. Decolonizing Washington means throwing off this yoke of oppression that comes from unregulated capitalism and the deepening monopolization of resources in the hands of the very few ultra rich, who own their politician lackeys, who own the military, and who are forming a spiderweb of extraction of resources around the globe. They are the 'supranational' elite who back themselves up with the terror of nuclear weapons. Don't kid yourself.
In its current manifestation, money only represents endless debt. Money should be more like water: by circulation, water fertilizes everything it touches and stimulates the diversity and abundance of nature (and culture I may add). In its essence money is like the water of the economy -- it has be real, like silver or gold --not just debt hanging like a noose around the neck of us all. Like with water or blood, if money gets stuck in a few hands and no longer circulates the corpus becomes sick: there is desertification everywhere, people go hungry, people are no longer educated, resources are raped, and the earth goes barren. That is the situation we are in.
This system of mindless extraction for profit is what occupies of all our public space and discourse and IT is our 'enemy'. The way to fight this enemy is to make sure that its bloodsucking ability is de-fanged by:
banning hi-frequency trading,
breaking "too big to fail" apart,
decentralizing energy,
dismantling the corporate prison state of fear and intimidation,
capping personal wealth at one hundred million $$,
imprisoning banksters and
stop killing people
Ending the resource and drone wars that only serve the corporate 'personhoods'.
This is about every-one's birth right of walking on this earth free from fear and free of hunger.