  We study the spectrum of the gravitational modes in Minkowski spacetime due
to a 6-dimensional warped deformed conifold, i.e., a warped throat, in
superstring theory. After identifying the zero mode as the usual 4D graviton,
we present the KK spectrum as well as other excitation modes. Gluing the throat
to the bulk (a realistic scenario), we see that the graviton has a rather
uniform probability distribution everywhere while a KK mode is peaked in the
throat, as expected. Due to the suppressed measure of the throat in the wave
function normalization, we find that a KK mode's probability in the bulk can be
comparable to that of the graviton mode. We also present the tunneling
probabilities of a KK mode from the inflationary throat to the bulk and to
another throat. Due to resonance effect, the latter may not be suppressed as
natively expected. Implication of this property to reheating after brane
inflation is discussed.
