And how many of these 2B people life in China or India? Such countries that have actively decided to persue manned spaceflight and innumerable other prestige programs ahead of safe drinking water. Rather than doing thier job for them, we should be lobbying for these countries to put thier own people first.
India in particular has a massive government program to bring running and drinking water to a bigger part of its population. Most countries are capable of doing more than one project at a time.
