Viral Crash Footage Prompts Questions About Drowsy Driving

In a viral video [https://www.youtube.com/watch?v=6hCqYsR_2wI ] from July 9, a blue bus first crashes into, then entirely crushes and shatters a white sedan on a highway through Seoul. A car to the right swerves to avoid the scene, only to hit another car and flip over onto its top. The 51-year-old driver — who was accused of falling asleep at the wheel — told police that he “momentarily lost focus during strained driving,” reported [http://news.khan.co.kr/kh_news/khan_art_view.html?artid=20170