  By taking the high-energy limit of the two-loop amplitudes for parton-parton
scattering, we have tested the validity of Fadin-Lipatov's ansatz for
parton-parton scattering in the high-energy limit. As expected, we have found
that it holds at LL and NLL accuracy, and hence we have independently
re-evaluated the two-loop Regge trajectory, finding full agreement with the
previous results by Fadin and collaborators. We have found, though, that the
universality implied by the ansatz is violated at the next-to-next-to-leading
logarithmic level.
