Look further down in that article: https://en.wikipedia.org/wiki/Miranda_warning#The_warnings
> anything you say can and will be used against you
which is a version that is much more common in fiction, and also what vintermann referenced.
> anything you say can and will be used against you
which is a version that is much more common in fiction, and also what vintermann referenced.
Citation [1] actually uses the "can and may" verbiage.
Citation [2] refers to the "will" verbiage as "now familiar verbiage" in a footnote, but it doesn't seem to be arguing that that verbiage is prescribed or accurate -- just that it's now familiar. It also incorrectly quotes that verbiage as coming from the original court ruling, so clearly they lost track of where they actually got it from (since it's not there).
I did find a quora answer [3] which gave an origin story for the "can and will" verbiage, but at this point I'm not ready to trust anything written on the topic that doesn't have solid references.
[1] https://www.law.cornell.edu/wex/miranda_warning [2] https://web.archive.org/web/20230513064943/https://scholarly... [3] look for Mark Tarte's answer to https://www.quora.com/Why-does-the-Miranda-warning-say-can-a...