People advise against trading the news because they go through a broker, and more importantly don't have the supercomputers to execute trades in tenths of a second or faster with slippage of less than one pip. I guess that no one here has those.
On the other hand, if you really want to trade the news, I'd be prepared to lose about one hundred dollars each time per mini lot and I would not use orders (including stops) and don't go to the bathroom, don't go for a smoke, don't answer the phone, don't listen to your wife, don't even blink.
The market goes up and the market goes down, and you can't rely on cause and effect to trade the news. In the Dec. 09 US non-farm-payrolls the good news caused the biggest drop in risk currencies in about a year despite good US news causing demand for higher yielding assets (good news indicating more stability in riskier assets) for over ten months.
News is scary. Slippage sucks.