A side note on the marijuana crop is a recent complaint that Mexican farmers have switched almost exclusively to a new "hybrid" that is incredibly difficult to kill.

Older varieties would die if cut off to a short stalk, or if sprayed with herbicides. These new plants will grow back from any roots left in place, or if all the leaves are killed by herbicides; so the "enforcers" are being forced to grub the roots out of the ground.

It sounds like horribly disagreeable labor.

(Sorry, no link. On MSNBC a couple of days ago but it's moved and I'd have to search for it.)

John