and for significant effects on non-charmed final states in decays of both particles, it is likely that virtual or real $D^{(*)}
\bar D^{(*)}$ pairs produced in low partial waves in other contexts may undergo significant rescattering into non-charmed final states. Foremost among these cases are the decays of $B$ mesons, which can involve such pairs via the subprocesses $\bar b \to \bar c c \bar s$ or $\bar b \to \bar c c 
\bar d$. The re-annihilation of the final $c \bar c$ pair can lead to an effective $\bar b \to \bar s$ or $\bar b \to \bar d$ penguin amplitude [@fsi; @Dun; @Ciu; @KLS], which appears to be needed in understanding large branching ratios for $B \to K \eta'$ [@eta] and $B \to K \pi$. Moreover, Suzuki [@Suz01] has proposed that this reannihilation, at least in $\pp$ decays, is associated with a large final-state phase. We discuss implications of this suggestion for CP violation in $B$ decays in Section IV, while Section V concludes.

Radiative $\ppp$ decays
=======================

The relative branching ratios for radiative decays to $\chi_c$ ($1^3P_1$) states are very different for $2S$ and $1D$ states. The observation of radiative decays $\ppp \to \gamma + \chi_c$ can 