CNN Anthony Bourdain Parts Unknown May 14, 2015 01:53:00
The deadly amtrak crash here in philadelphia has put an emphasis back on train safety. considering the 10s of millions of people that travel every year, it's relatively safe but this crash is one of dozens that happen every year. >> reporter: tuesday's amtrak crash is just the latest in a string of horrifying accidents on u.s. rails. >> all of a sudden in a blink of an eye, i want from one side of the train to the other side of the train. >> reporter: on average, there v been 31 amtrak train derailments each year since 2006.