Thank you for your further comments and questions.  I have few facts with 
which to reply, so I provide speculation and opinion.  Hopefully others will 
jump in with corrections or disagreements where appropriate.

1. Regarding the unclaimed portion of Antarctica, if there were economic 
gain from it, I believe that countries and/or multinationals would be quick 
to claim it, or to act without bothering to claim, especially if the 
Antarctic Treaty System had collapsed.  Sorry to be cynical, but I think 
that it is also being realistic.  Conflicting claims, including exploitation 
vs environmentalism, could of course lead to war.  If the West Antarctic Ice 
Sheet were to collapse, presumably due to climate change, I do not know how 
much of Marie Byrd Land would be left nor how accessible that portion would 
be for resource extraction or conservation/research activities.

2. Are there any other land areas on Earth which are unclaimed?  Not like 
the Spratly Islands which are claimed several times, but like Marie Byrd 
Land and the section outside Norway's Antarctic claim for which no claim 
exists.  Are these unclaimed lands rocks and islets or are there further 
substantial portions of unclaimed land?

3. To supplement the boundary crosses, I had understood that four countries 
meet in southern Africa?  See
http://www.lowdown.co.zm/2003/2003-12/wherefourcountriesmeet.htm and
http://www.safarinow.com/go/ChobeMarinaLodge
Or have I been fooled by tourist literature?

4. Regarding going from No One's Land to Everyone's Land and "a nation state 
in which the sovereignty of every individual human being both within that 
state & outside of it is indeed fully regarded & valued as equally divine", 
those would require a complete and nearly universal change regarding how our 
species views identity, statehood, culture, and nationhood.  Perhaps in a 
few centuries or millennia.  Consider how those views have changed since a 
few centuries and millennia in the past.  So it is not impossible, it just 
takes time--or perhaps a fundamental change such as a catastrophe wiping out 
90%+ of humanity or an attack by extraterrestrials.  I think that this 
discussion has drifted slightly away from international borders.

Ilan

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