Current Affairs: Tsunami-warning system under question

People looted from the shopping mall which was damaged following earthquakes and a tsunami in Palu, Central Sulawesi, Indonesia, Sunday, Sept. 30, 2018. Source: AP
Indonesia's National Disaster Mitigation Agency says the country's tsunami-detection buoys were not working when an earthquake and tsunami hit the island of Sulawesi.It has led to calls for an overhaul of the tsunami-warning system.
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