Nationwide insurance will lay off about 80 workers at its downtown Des Moines office, part of 1,100 layoffs nationally, the Des Moines Register reported. Nationwide spokesman Joe Case said workers were told today that they would receive an official 60-day notice in January. The layoffs will be effective in March. “These are difficult but necessary choices to position the company for the future,” Case said. “We are committed to moving through this period with great respect and full support for those impacted.”