You can't really appreciate this unless you lived around these things. Someone finally found something good to do with these rascals.

 

Very interesting: Wait until you see the end result!

 

This is pretty amazing stuff going on right here in this country. The machine in this video lays its own rail road tracks. It's working on a high speed rail line between St. Louis and Chicago right now. Impressive. There are only two of these machines in the world - this one and one in Europe.