As someone who know pgp exists, i say have at it feds, lets see what kind of explots clippy2.0 has and how quickly it gets cracked.
Seriously ever actual expert in cryptography would tell then what they want is not possible. It would be exploited within weeks, probably by multiple different actors. Let them fuck around and find out, they obviously dont "learn" from it, but at least it will shut them down for another decade or so.
I like how even mainstream politicians openly cuss now but we still censor their shit in online news articles... Whos fucking sensibilities are they worried about offending exactly if they dont censor words?