Scam call article, and ...
... vid from anti-scam white-hat.
NYT article on the scam industry.
"The Long Read" -- https://www.nytimes.com/2021/01/27/magazine/scam-call-centers.html
Also, a link to a video posted by the "Jim Browning" anti-scammer mentioned in the NYT article: https://d.tube/#!/v/jimbrowning/zsgjr21a.
Beer for "Jim Browning".
Today's cold-call on my phone: "Your vehicle warranty is about to expire..." Sigh.