If you used a "little logic" (as you say), you would recognize that the US govt would rather benefit economically from Bitcoin via sales taxes (trade) and incom

If you used a "little logic" (as you say), you would recognize that the US govt would rather benefit economically from Bitcoin via sales taxes (trade) and income taxes (mining), rather than block it. And yes, I do think you are ludicrous to see FinCEN's statement as not representing their true desires. If the US govt was truly after Bitcoin you would see the Congress starting talking about laws against it, rather than a lawsuit about "so and so did not register as an MSB".