About 1.5 million refugees have arrived in Germany since 2015, prompting local authorities to allocate huge sums for migration-related issues. Speaking to Sputnik, Professor Bernd Raffelhuschen from the University of Freiburg specifically focused on the long-term costs of pensions and sickness insurance for migrants. Sputnik: Mr. Raffelhyushen, can you name the approximate state expenditures caused...