this is a very touchy subject and in all honestly the US is going to step in somehow whether we like it or not and try to form some type of regulation with it, of course those outside the US don't have to follow the rules but those in the US will have to adhere by them.
my only request is that they are able to work with bitcoin and its innovation and not find a way to regulate it so bad that it will force us to stop using it.
is smells like you have not read the reports or know what fincen actually is...
try researching them..
they only care about FIAT and can only control the flow of FIAT in BANK ACCOUNTS. the whole 'virtual currency' term is about the
digital dollar on computer screens/database tables of liberty exchange, bitstamp etc which represents is a "convertable virtual currency" of the actual dollar in their bank account. nothing to do with bitcoin balances of those companies or of blockchain.info, bitcoin-qt, armory, etc, etc.
the sooner people get their head out the sand that fincen/FSA etc can only control the FIAT. and not scare monger about bitcoin dying.. the sooner the people can create legitimate fiat exchange platforms.
I would not like to work with regulators because that means verifications, taxes, general disability when using BTC. Bitcoin is decentralised and can't be regulated. The governments can attack the big exchangers but they can't stop every individual using bitcoin.
the government only tax FIAT you have, so it will only affect bitcoins when you put it into fiat. just like the last 100+ years. if you buy a piece of artwork they dont request 20% of the painting to be ripped from its frame as tax.. they wait for you to sell it. and then tax you on the FIAT