This short video is less about Mark Twain, and more about what Israel has done (and is doing) in the realm of agricultural innovations. Having seen and partaken of Israel's agricultural bounty, I can tell you unequivocally that this is all true!!
It is interesting, however, that Mark Twain said that the "land was laying in sackcloth and ashes". In that single statement he said something quite profound, because the land, indeed, was laying dormant -- waiting for God's people to return!
Bill Duerfeldt