I am an avid 4th amendment supporter, this kind of thing outrages me that this right isn't permeated everywhere.
Bitcoin *still* requires security measures for it not to be taken, even by authorities.
Security measures that are pretty darn quick and easy to take. And if one wants to eschew a financial institution, with Bitcoin you won't have to worry about your "cash" getting seized for no other reason than it catching a good officer's eye.