We're bound to get screwed

from here

Basically ALL Bluetooth devices could be tricked into using a 1 byte encryption key because the protocol designers were trying to comply with "international encryption regulations". 

This is probably what most encryption backdoors would wind up looking like if it became official policy. Most won't be coordinated with any government agency, they'll just some quick and dirty thing that gets jammed in with the hope that no one notices. If/when the Feds come knocking, the developers can just point to it and say there, use that.