  In this presentation, I discussed a) the charm total cross-section and its
comparisons to measurements at other beam energies and pQCD calculations; b)
the semileptonic decay of charmed hadrons and the sensitivity of non-photonic
leptons to charm quark collective flow and freeze-out; c) semileptonic decayed
electron spectrum at high transverse momentum, its comparison to FONLL in p+p
and d+Au collisions, and heavy-quark energy loss in Au+Au collisions.
