BTC investors need to get over the notion that every dip is preceded by some type of bad news. Bitcoin has been overvalued for the past several weeks and what we're seeing is a market correction. We're likely to see a few more before we see a new floor established, unless that is, there is some legitimate world news that triggers another rally.
This is probably the most likely answer for the drop from $1,200 to $800 where it stayed for a while. However, the newer drop from $800 to $700 may be due to another factor.
I think primarily this is the slow decline after the (double) top came in. News can artificially inflate or deflate the price, but it can alsio be a catalyst to push us where we are destined to go just faster. I believe today was the latter... And its not over imho. This is good though. Knock off the fluff, build a base and get on with the legit climb.