An integral part of successful foreign direct investment is to understand the target market opportunities and the nature of the risk inherent in possible investment projects, particularly in developing countries. You work for a company that builds wastewater and sanitation infrastructure in such countries. The Multilateral Investment Guarantee Agency (MIGA) provides insurance for risky projects in these markets. Identify the sector brief for the water and wastewater sector, and prepare a report to identify the major risks that projects in this sector tend to face and how MIGA can assist in such projects.