Brokerages make their money off the commissions and I believe are in on the fix to sway the markets way up and way down enticing traders to, well, trade so they (brokers) can get richer.
Simply don't trade.
The market always pops right back up after the "grim" news (faked), and just like a good movie the market will win in the end (because the market is scripted - I'd bet every major "news" item next week, including Libya, Japan, etc. is already scripted to the point of up 100 on Monday, down 120 on Tuesday, etc.).
It is so fixed as to be stupid.
Just hold your positions and don't follow these brokers up and down. Go out and enjoy the nice weather, have fun, and leave these stupid wall street games to those stuck inside trying to fabricate their winnings at your expense. Been there, played that GAME, it's not worth it.