We discuss the role of the radiative $B$ decays $B \rightarrow
X_{s/d} \, \gamma$ in our search for new physics focusing on
the issue of direct CP violation. We discuss in some detail a
SM prediction for the CP asymmetries in inclusive
$b \rightarrow s/d$ transitions, namely
$|\Delta {\cal B}(B \to X_s \gamma) + \Delta {\cal B}(B \to X_d \gamma)
\sim 1 \cdot 10^{-9}|$. Any measured value in significant deviation
of this estimate would indicate new sources of $CP$ violation beyond
the CKM phase