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Those dollar figures seem very low. How could you provide health care and food for everyone in the world for 13 billion dollars? That figure cannot be accurate. In the US alone, don't we spend hundreds of billions a year on health care? There are around 6 billion people in the world. I really think it would cost a little more than 13 billion to provide food and medical care.
[/ QUOTE ]The figures are for very basic care. Probably means the basic immunizations, medicines, diagnoses. Also don't assume we'd be starting from zero everywhere.
Also, other industrial countries get better healthcare for much less money than we do.
http://www.mercola.com/2000/jun/10/us_healthcare.htm
We're consistently ranked fairly low by the World Health Organization (or whoever else ranks such stuff) despite spending much more per capita. So, there are better things to make comparisons with.