WASHINGTON (AP) — As the Biden administration grapples with an increasingly tense and unstable situation in the Middle East, Secretary of State Antony Blinken is heading to the region this weekend for the fourth time in three months on a tour expected to focus largely on easing resurgent fears that the Israel-Hamas war could erupt into a broader conflict. The Biden administration had breathed a sigh of relief about the potential for a broader Mideast war in the immediate aftermath of Israel’s military response to the deadly Oct. 7 Hamas attacks in Israel. Two-and-a-half months later, though, the chances of a regional war have increased. The State Department says Blinken will visit Turkey, Greece, Jordan, Qatar, the United Arab Emirates, Saudi Arabia, Israel, the West Bank and Egypt.