I lost my dear ones in one of such crashes :(....i vividly remember the moment when my head denied to believe what my ears heard....it gives me creeps even after 8 years of the mishap. it will remain as a deep scar throughout my life and even when i seem to have forgotten it, at times it comes in front of my eyes just like it happened an hour or sth ago. :( swatantrata, i was envisioning that incident while watching the clip you posted. it's scary