I would say water transportation. Even in places where well are dug and clean water is provided, many of the societal problems still exist because transportati

I would say water transportation. Even in places where well are dug and clean water is provided, many of the societal problems still exist because transportation in still rudimentary. For instance, in many Haitian slums the water source is at the bottom of large hills. What this means is that water must be carried in 5 gallon buckets to the top of the hills to provide water for the family. The way they accomplish this is by using restaveks, or child slaves. I'm not saying the restavek system would completely dissapear if there was proper water transportation, but the need for it would be severely limited and there would be significantly less child slaves.