  A short overview is presented of current issues concerning the production and
evolution of Li, Be and B in the Milky Way. It is argued that the currently
popular idea that Galactic cosmic rays are accelerated inside metal-rich
superbubbles (which leads ``naturally'' to the production of primary Be and B,
as observed) encounters the same problems as the previously popular idea of
supernovae accelerating their own ejecta. A major challenge to theories of
light element production is presented by the recent (and still preliminary)
data suggesting a surprisingly high and $\sim$constant abundance of $^6$Li in
halo stars; attempts to explain such a ``plateau'' are critically examined.
