I worked on a lot of issues along these lines when i began laying ground work for some of my ideas, and i was always told that it seemed as though the authorities would be making an exception, which they never like to do.
So, i have been working on a crafting the Articles of Decentralization, similar to Articles of Association which are used to define and govern how companies operate, If we have such a document then we have begun laying the foundation that Legalizes DACs.
If we have Bitshares on Board as well as 3 other DACs based in different parts of the world we can then support the "international" part of it. We will then set out to create frameworks similar to how authorities regulate normal companies, but ours will keep in mind the decentralization and privacy parts.
All this gives us a conversation point when we try to pitch our businesses to authorities and even when a bank does their KYC, we'll have structures recognizable for them to interact with. Some lucky guys in less restrictive countries will get ahead first and thier fame will help our cause in restrictive territories.