I traveled to Ukraine to teach sociology. It left me amazed. (washingtonpost.com) I traveled to Ukraine to teach sociology. It left me amazed. By Nicholas A. Christakis 2026031610320300 I'd never taught in a war zone before. But when the rector of the Kyiv School of Economics called last autumn, I found it impossible to say no. Three days in a nice hotel with a fortified bomb shelter while the rest of the country endured daily attacks?