M.G., author of Those Who Can See, has yet another tremendously data-packed post, this time on institutional racism (including a fun yeti metaphor). Like the terrifying shambling strider, it wreaks havoc and destruction wherever it treads, yet no one is ever able to pinpoint any hard evidence of its actual existence.
That doesn't stop us from writing about it, though. Using Ngram viewer, the percentage of published books in the US containing the phrase, from the sixties--1962 being the year of its inception--through 2008:
During the high crime crack war years, we began to forget about the renegade ronso, as making excuses for dangerous behavior that was suddenly hitting too close to home presumably fell out of favor. But once that straightened itself out, we set our sights back on the sasquatch, and we haven't taken them off him since.