Well, a backdoor is more traditionally referred to be something secret, but if I remember correctly it's been routinely used for the overt LI things as well, at

Well, a backdoor is more traditionally referred to be something secret, but if I remember correctly it's been routinely used for the overt LI things as well, at least since the "crypto wars" in the 90s It sure is how the EFF is using the word in this article