Editorial remarks.-- Open discussion: Investment protection treaties and the formulation of public policy.-- Meetings: Drinking Water and Sanitation Services in Guatemala ; Bolivarian Republic of Venezuela: Meeting of Regional Water Company Presidents ; Chile: Seminar on Transfer Prices ; International Investment Agreements and Sustainability of Infrastructure Investments.-- News of the Network:Ecuador: Water Protection Fund (FONAG) ; Colombia: National Policy for Integrated Water Resource Management ; Argentina: Environmental Water Management Law ; Uruguay: National Water Policy ; ECLAC: Millennium Development Goals ; Chile: Proposal for an integrated river basin management model ; Peru: Agenda for sustainable management of water, river basins and mining.-- Internet and WWW News