Holly Morris of Globe Trekker (whose mom wrote the biography that “Brian’s Song” was based mostly) treks out into the deserts of Niger to track down a single of the continent’s handful of remaining traveling caravans. I like how at 2:eleven when Holly and her movie crew eventually come upon the caravan right after God knows how extended of looking, the camel-laden group keeps nonchalantly continuing on, as if saying: “I don’t care who you are, do you see this desert? Do you comprehend how substantially even further we have to go?”