Scalpers will depend more on indicators than news. Scalping is just a waste of time in my opinion. The riskiest trading types are scalping and day trading. Most traders that fall in this categories are losing while swing traders and holders are very patient and make more money from trading. They are also not time consuming like scalping and day trading. If you are using fundamental analysis to trade just as you explained and not trading often, you are not really scalping in my opinion because you do not trade frequently.
Scalping is actually good to involved oneself but needs patient on market movement especially when waiting for the market to drop them buy and when it gains little percentage you sell. To me it's actually make sense if the trader is active trading because it's other easy way to lose if not carefully understand how the price action does because when you scalp and market didn't just pushed up immediately you start getting worried that is why it's always advisable to hold than trade because when you scalp you give it that chance the to completely lose money.