That would be a good start though it wouldn't have prevented this situation. Whatever tax would be due would be worth it to be ahead of the rest of the market. For those who don't know, news like this isn't just announced to humans, it is also encoded in a format computers owned by traders can understand. It's much like the issue with Watson on Jeopardy where the machine was able to understand the text and respond faster than the humans even though in most cases the humans knew the same answer (Toronto excluded). I'm not sure with Fed announcements however if they're released in computer format at the same time as human format like most of the news services do. Either way, the speed at which this trade was made seems to have been set in motion before humans should have been able to hear the news.
As for clocks being off, we're talking about systems where it makes sense to build new cables costing hundreds of millions between cities to shave a few ms off the time it takes a trade to complete. Clock errors don't happen. There's too much money involved in each and every ms.
The thing that gets me about these automated high frequency trading systems is when they're called into question, those making billions off of them claim they're necessary because they bring liquidity to the market. I have to question if anyone in the market needs millisecond liquidity except for them. If I've held a stock for twenty years, I'm fine with it taking twenty minutes to sell rather than twenty milliseconds. They're using solving a problem they're creating as justification for their actions. Guess they look that whole bit about pulling yourself up by the bootstraps a bit too literally.