Windshield Issue Prompts Delta Air Lines Boeing 767-400ER Diversion To Shannon

N825MH, A Boeing 767-432ER in the care of Delta Air Lines, had a windshield issue two hours into flight DL4 while cruising at 34,000 feet above sea level and as such, had to turn around over the Atlantic Ocean to land at Shannon Airport(SNN). According to among other sources, the Irish claire.fm, emergency crews were put on alert in case of brakes overheating or other potential issues with the 25-year old Boeing 767-400ER.