With its rugged coastline and pristine natural beauty, Corsica is a jewel in the Mediterranean Sea. The French island, just a stone’s throw north of Italy’s Sardinia, attracts millions of tourists each year, but only very few of them ever become aware that the mafia is holding Corsica in its ironclad grip. For the locals, threats, hush money payments and fudged construction work are part of daily reality. It’s also not rare for people to be killed by the mafia. Often dubbed “the island of beauty,” Corsica is the region in France, excluding its overseas territories, with the highest murder rate…