This trial is moving like a freight train.

The freight train has stowaways hidden all the way through.

Silver is a market that sort of acts like a freight train. It's really slow-moving, and once it gets started in a direction, you cannot stand in front of it.

The big diesel freight train vs. the little engine that could,

In the last year or so, this has really taken off like a freight train without brakes.

I do think it's a freight train that's going to pick up steam. I don't think it's a fad.