the video of the senate hearing is here:
http://www.c-spanvideo.org/program/DigitalCuin short FinCen want to ensure that virtual currencies operate legitimately and honestly by, where money exchangers/financial institutions that can threaten the U.S financial Systems require regulations (bitstamp, mtgox, etc, (anything swapping bitcoin for U.S Dollar as a business)
as said by Jennifer shasky calvery
FinCen will do everything in its power to stop abuses of the U.S Financial system
all the speakers seam to understand that the negative/illicit uses potential of digital currencies do not outweigh the potential positives.
as said by Sen Tom Carper
i had my staff to talk to me about the early days of the internet, and there were alot of thoughts raised about how it may foster alot of illegal activities, but there were some that said there could be alot of benefit aswell. and i asked them was this analogy applicable also to digital currencies
the other parties agreed that as long as they keep to the controls needed to protect the U.S financial system, then there are benefits to using these digital currencies
shasky went on to say that fincen control is only the U.S financial system, and have not and cannot declare that bitcoin is legal/illegal because it has nothing to do with them
Fincen has never opined and still is not opining on whether virtual currency is a "real currency" or a commodity as those questions are outside our purview. we are the anti-money laundering/counter-terrorist financing regulator for federal government so our regulations spoke to that and only that
a speaker for the FBI also agreed bitcoin is not in their jurisdiction to directly be involved, they do however investigate any illegal activity affecting americans and if found the perpetrator is within the U.S jurisdiction. they would then pursue the matter
even experts from child exploitation agency's also agree that regulation at the FIAT/Dollar exchange businesses levels is required, while preserving the individuals privacy of transactions peer- to - peer to not hamper the innovation
the general opinion of mine is that they see it like the internet. something new to run towards not run away from, and they fully understand they cant control bitcoin itself, but they do have to ensure that the edges into/the gateways to bitcoin via the U.S dollar are all complying with U.S regulation, and idividuals living in the U.S stay within the law