Huge volume on USD futures /DX

I don't know what to make of this monthly chart, except look at the huge volume.
Many people betting on the dollar, up or down.

Thats what futures is....and equal and opposite position.  With a time element baked in, but nothing like option "theta burn"

I see little difference between the large commercial, small commercial, and non-reportables (small speculators---which are by the way, not necessarily evil nor necessarily wrong)


http://screencast.com/t/N2Q4MDVkNzY