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1) The document reports on radiation levels and nuclear events in Japan following the 2011 Fukushima Daiichi nuclear disaster. It includes radiation readings taken around Fukushima between March and December 2011. 2) Updates are provided on readings from the SPEEDI system, which models radiation diffusion, and information shared on social media about radiation levels and nuclear topics. 3) Concerns are raised about a lack of reliable information being shared with the public during the early stages of the disaster. The document analyzes the response and information flow during and after the incident.Read less