  MiniBooNE began running in antineutrino mode on 19 January, 2006. We describe
the sensitivity of MiniBooNE to LSND-like nuebar oscillations and outline a
program of antineutrino cross-section measurements necessary for the next
generation of neutrino oscillation experiments. We describe three independent
methods of constraining wrong-sign (neutrino) backgrounds in an antineutrino
beam, and their application to the MiniBooNE antineutrino analyses.
