[Updated below 7/5/16 (6:30 pm)]
by Andrea Hricko
Last week, three railroad workers were killed in Texas when two BNSF locomotives crashed head-on into each other; one other worker was hospitalized but released. Due to heavy smoke, the bodies of the three workers with fatal injuries were unable to be located for many hours/even several days after the crash because of heavy smoke from the ensuing fire.
According to the Wall Street Journal:
"The railroad has said that a new safety technology known as positive train control was slated for installation later this year along the area of track…