I have found no impact of news on price. Any fluctuations in price after a news event conforms to movements expected by price action analysis. Banks use news events to accelerate the market in order to position it where they wanted it go all along.
The exceptions are the truly major events like Brexit, the Japanese tsunami and the unpegging of the Swiss franc. These events truly shook the market.
Having said that, it is easy to get caught on the wrong side of the market on major news days. NFP and FOMC come to mind.