  We extend to the two-particle Anderson model the characterization of the
metal-insulator transport transition obtained in the one-particle setting by
Germinet and Klein. We show that, for any fixed number of particles, the slow
spreading of wave packets in time implies the initial estimate of a modified
version of the Bootstrap Multiscale Analysis. In this new version, operators
are restricted to boxes defined with respect to the pseudo-distance in which we
have the slow spreading. At the bottom of the spectrum, within the regime of
one-particle dynamical localization, we show that this modified multiscale
analysis yields dynamical localization for the two-particle Anderson model,
allowing us to obtain a characterization of the metal-insulator transport
transition for the two-particle Anderson model at the bottom of the spectrum.
