The strange detail about the web cam is that it has a connector to attach the cable. This would be logical design decision if it (the cam) could be a replaceable device, but since in order to get to it one would need to separate two parts glued together (this doesn't look like designed to be disassembled or couldn't be disassemble by design if you will). My conclusion is, that it's either a bug in design or this same part is used in other models where it can easily can be accessed/replac
ed (Apple just saving on making two different versions of the same part). Or... there is a way to separate the glued parts Apple know aware of...