Massive releases of agents intentionally or unintentionally can be disruptive to the lines of individuals at many levels. In 1984, the release of toxic Methylisocyanate gas had occurred suddenly and without warning from the union carbide plant in Bhopal. This disaster had created thousands of casualties thereby overwhelming local, health and medical resources.

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Five southeast Asian countries have recently endorsed a joint plan of action to fight the haze caused by Indonesian forest fires. The haze was at its worse this season, leading to the closure of

World Bank pulled up for aid to flood control programmes in Pakistan