Jiangzhuo'er, presented, 3 questions to the authority.
Dilemma1: is bitcoin money or not?
we keep saying bitcoin is money (and it really is) but in reality bitcoin is used mostly as a commodity and if I am not mistaken in US bitcoin is considered a commodity when it comes to the law. and there is not much dilemma here.
Dilemma 2: how to deal with bitcoin exchanges?
this one is not at all a dilemma!
a bitcoin exchange like a forex exchange, a stock exchange, or simply it is like any other business and dealing with it is the same as dealing with any other business that deals with fiat.
I really don't see how can this be any problem.
Dilemma 3: how to control bitcoin price via exchanges?
this one is a challenge, it can be done but it is getting harder as bitcoin popularity grows and the number of exchanges all over the world increases.
I believe the question in this one is "why would they want to do that?" "what would be the befit of it?" or "what is the motivation of controlling the price?!"
government is concerned with legal/illegal things people do with bitcoin and fiat since they are connected through an exchange. such as money laundering and other illegal activities. and whether bitcoin price is $1000 or $0.01 all these things can be done. so there is no point in controlling the price.