1. Civil Safety Research, Research Center Jülich, IAS-7, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
2. Department Social Theory and Social Psychology, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
3. University of St Gallen, Dufourstrasse 50, 9000 St Gallen, Switzerland