  The complete short mean free path description of magnetized plasma in the
drift ordering has recently been derived. The results correct the previous
expressions for the ion pressure anisotropy (or parallel ion viscosity) and the
perpendicular ion viscosity - the ion gyro-viscosity is unchanged. In addition,
the electron problem is solved for the first time to obtain the electron
pressure anisotropy (parallel electron viscosity) and the electron
gyro-viscosity - the perpendicular electron viscosity is negligible. The
results have been used to obtain a reduced fluid description appropriate to the
edge of a tokamak. In addition, the complete description has been used to
evaluate the radial transport of toroidal angular momentum that determines the
radial electric field and flows in a tokamak.
