Why Middle East turmoil gives F1 the perfect chance to make Europe its main hub again

Formula 1's ever-expanding calendar outside Europe has gradually reduced the continent's prominence over the years. With instability in the Middle East becoming increasingly frequent, could the time have come for Europe to regain a more central role? It comes amid recent reports that the scheduled WEC races in Qatar and Bahrain are likely to be dropped from the calendar, with the season instead expected to conclude in Europe.