Two Jumbo Jets, Pan Am 1736 and KLM 4805 collide on the lone runway at Tenerife, Spain. The two aircraft are then burnt out and 583 people lose their lives. But how come two experienced pilots made a mistake of this magnitude? How come two passenger jets collided on the runway?

April 1992, Guadalajara, Mexico. On the 19th, residents start complaining of a strong gasoline-like smell coming from the sewers. Three days later, on the 22nd, numerous gas explosions in the sewers over a time span of four hours destroy kilometers of housing estate and killing 206 people. But who, if anyone, is to blame? What caused the inferno in Guadalajara?