Excerpt: Tens of millions of middle-class Americans are uninsured or underinsured and soaring health costs are pushing them and cost-conscious employers and insurers to look abroad for savings (see article). At the same time the best hospitals in Asia and Latin America now rival or surpass many hospitals in the rich world for safety and quality. On one estimate, Americans can save 85% by shopping around and the number who will travel for care is due to rocket from under 1m last year to 10m by 2012 -- by which time it will deprive American hospitals of some $160 billion of annual business.  MORE >>