A colleague of mine worked in Dhaka for several years, a city infinitely more crowded than Port au Prince. Yet, Dhaka is much cleaner. In Port au Prince, plastic bottles and trash clog the waterways creating a flooding hazard and a breeding ground for mosquitoes that transmit diseases. It is a great place to be a goat but a hard place to be a human being. What is the difference between Dhaka and Port au Prince? Bangladesh has recycling plants while Haiti does not.