  We present the first multi-frequency phase-referenced observations of Cygnus
A done with the VLBA at 15 and 22 GHz. We find a pronounced two-sided jet
structure, with a steep spectrum along the jet and a highly inverted spectrum
towards the counter-jet. The inverted spectrum and the frequency dependent jet
to counter-jet ratio suggest an obscuring torus in front of the counter-jet.
  From 14 epochs of 15 GHz VLBA data we accurately derive the jet and
counter-jet kinematics. For the inner jet (r <= 5 mas) we measure motions of
beta_app ~ 0.2-0.5 h^{-1} and on the counter-jet side we find beta_ app ~
0.03+-0.02 h^{-1}. We discuss the jet velocities within the unified jet model.
