What narrative technique is the presence of a newsfeed in a documentary film?

Associative Interpolation:

Associative, that is, through the association of the characters in the work to cause the narrative part. The article Dad's Flowers Falling is a typical example. The article opens with a pink oleander on the lapel, leading to the previous day to visit his father in the hospital; through the memory of his father's words during the visit, in particular, "I" do not want to be late to lead to six years ago, because of the bed-ridden by his father's punishment and never late for school and so on through the character's recollection, reminiscence, imagination, and other psychological activities. to carry on the narration.