There was an attempt to do this in the 90s in the US, but it failed. There's a paper titled "Keys Under Doormats" that outlines the debate of that era: https:/

There was an attempt to do this in the 90s in the US, but it failed. There's a paper titled "Keys Under Doormats" that outlines the debate of that era: https://www.schneier.com/academic/paperfiles/paper-keys-under-doormats-CSAIL.pdf https://www.schneier.com/academic/paperfiles/paper-keys-unde...