  We extend the recent proposal of Papadodimas and Raju of a CFT construction
of operators inside the black hole interior to arbitrary non-maximally mixed
states. Our construction builds on the general prescription given in earlier
work, based on ideas from quantum error correction. We indicate how the CFT
state dependence of the interior modes can be removed by introducing an
external system, such as an observer, that is entangled with the CFT.
