On July 19, 1989, United Airlines Flight 232 heading from Denver to Chicago suffered catastrophic engine failure. The crash during an emergency landing in Sioux City killed 112 people — 184 survived. More on the story, 35 years later: https://t.ly/fD_HN | KCCI

In a flight exercise showcasing how NORAD intercepts aircraft entering restricted airspace, CNN's Julia Vargas Jones takes to the skies to experience the operation firsthand. | CNN