  In the fuzzball paradigm the information paradox is resolved because the
black hole is replaced by an object with no horizon. One may therefore ask if
observations can distinguish a traditional hole from a fuzzball. We find: (a)
It is very difficult to reflect quanta off the surface of a fuzzball, mainly
because geodesics starting near the horizon radius cannot escape to infinity
unless their starting direction is very close to radial. (b) If infalling
particles interact with the emerging radiation before they are engulfed by the
horizon, then we say that we have a `firewall behavior'. We consider several
types of interactions, but find no evidence for firewall behavior in any theory
that obeys causality. (c) Photons with wavelengths {\it larger} than the black
hole radius can be scattered off the emerging radiation, but a very small
fraction of the backscattered photons will be able to escape back to infinity.
