News trading is a special skill on its own and normally - unless you can really trust you broker - dont even bother live
I used to trade with large lots with GFT (uk) about 5 yrs ago and if i managed to get an entry at news - i might get a really bad price - or once in - I was sometimes stuck and could not exit under 3 minutes
This was to stop me scalping etc - and since then I have not really bothered with trying to catch all news spikes
Normally I will see if there are 2 or 3 spikes both ways and then enter 3 to 5 mins after the dust as settled
Many do well on news announcements - but like I say - a lot of luck and also if your broker gets you good entry and exit prices.