Singapore to shut down workplaces and schools - contact tracing isn't effective enough. Prime minister says "despite our good contact tracing, for nearly half of these [new] cases, we do not know where or from whom the person caught the virus." https://www.straitstimes.com/singapore/health/most-workplaces-to-close-schoo... -- Antonio A. Casilli Professor, Telecom Paris, Institut Polytechnique de Paris Member, Interdisciplinary Institute for Innovation (i3 UMR 9217 CNRS) Associate Member, LACI-IIAC (EHESS) Faculty Fellow, Nexa Center for Internet & Society *We respect your right to disconnect. This email send time is due to my own workflow efficiency. You are in no obligation to take action or reply to it outside your office hours.*