RE:
-- option 1: that is entirely dependent on an internationally/globally enforced/recognised set of rules
-- option 2: is the collapse of the tourist industry, which will impact on the developing world more than anywhere else, and will unleash a whole set of currently unimaginable consequences
Given it's not just the travel industry, but the much larger travel industry, which is crucial for economies in the developing world, the importance of international cooperation cannot be overstated. There will need to be some clear rules (which may well have to adapt) on this, otherwise...