Discharging the nuclear-contaminated wastewater from the Fukushima nuclear power plant into the sea could have a devastating impact on the marine ecosystem, experts from Japan and other countries have warned. Without a full assessment of the potential consequences, it's impossible to predict how the discharge might affect the development of local fisheries and even the health of people in Japan, the neighboring countries and further afield. If the worst happens, the experts wonder whether the Japanese authorities will be prepared to bear responsibility for their actions.