Governments have given out the marching orders to have the fourth arm take out this threat to their fiat currency.
There is nothing backing up the value of a bitcoin other than the good faith and credit of the idiots who keep throwing money into it.
United States paper currency is subject to a slow and inevitable decline in value. Bitcoin, on the other hand is subject to an inevitable and instant disintegration. When Bitcoin collapses it will be worth nothing overnight.
It is an entirely ephemeral currency. It does not really exist except in the minds of the fools and suckers who are willing to trade real dollars for nothing more than Hope and Change.