Washington D.C. The US State Department has urged its citizens to leave the Middle East, citing severe security risks.The department called on Americans to exit the region using available commercial flights. This warning includes Bahrain, Egypt, Iran, Iraq, Israel, West Bank and Gaza, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, United Arab Emirates, and Yemen. However, limited flights have become a major challenge for citizens trying to leave the region. According to FlightAware, more than a thousand flights had been canceled as of Tuesday morning. Thousands of international flights were also canceled on Sunday and Monday. The US Ambassador to...