10. The non-transitory computer-readable storage medium of claim 8 , wherein the instructions further include instructions that cause the computer system to store a document that archives contents of the second region.
10. The non-transitory computer-readable storage medium of claim 8 , wherein the instructions further include instructions that cause the computer system to store a document that archives contents of the second region. 11. The non-transitory computer-readable storage medium of claim 10 , wherein the instructions that cause the computer system to store the document includes instructions that cause the computer system to store a plurality of versions of the document, each version corresponding to a different time.