THE DUST BOWL
PBS, 8:00 p.m. ET
PART 2 of 2. This concluding half of Ken Burns' Dust Bowl documentary actually gets around to the Dust Bowl you thought this nonfiction film was about, after a first-part primer about previous dust storms and agricultural and environmental missteps. But that early groundwork served as the necessary roots system to make tonight's conclusion blossom - and, ironically, an abundance of groundwork, and a lack of roots system, is what led to the Depression-era Dust Bowl in the first place. Fascinating stuff, told by eyewitnesses who describe it in almost unbelievable chilling and depressing detail. Check local listings.