Another video I have on speed-dial as this shit repeats so often, is "Encryption: Last Week Tonight with John Oliver"
https://yewtu.be/watch?v=zsjZ2r9Ygzw
John even mentions the Clipper Chip explicitly. And also that there are 100s of alternatives to choose from (or create your own), so the criminals you'd like to stop ... guess what ... criminals break the law ... by definition ... so they'll just do it again.
Why is it always comedians that have to explain that to you as you won't listen to the experts?