Brought to you by History Is A Weapon:
1) There is no purchasing the revolution or surfing to it online. While this might seem like a no-brainer to most, the tendency to reduce social change to individual action penetrates even the sharpest minds. So while we might be too cool for the (red) scam, we can still get caught up in the American Apparel branding. Which brings us to...
2) A lifetime of purity is worth a good ten minutes of coalition. What's it worth if you believe all the right things but can't work with anyone who doesn't? People getting shot at in Iraq don't care if you're working with democrats, nationalists, liberal reform groups, or radical communists if it stops the war. Jerry Falwell and the Chamber of Commerce may not agree on banking regulation and sermon subjects (or they might...), but they rule because united they stand, divided we fall. We don't need to drink together, but we have to let bygones be bygones and keep our eyes on the prize.
3) Even a vigil a day won't keep the system at bay. A moral argument may convince regular people to join us, but the empire isn't rhetorical. Politicians and the various institutions of war, from Exxon to the Ivy Leagues, don't give a whit about our moral arguments: they know their goal and they've made calculations to achieve it. Getting them to change their actions means getting them to change those calculations: politicians want to stay in office and corporations want to maintain profits. Threaten their primary needs and they won't just listen, they'll respond.