  The pursuit of the core collapse supernova explosion mechanism continues.
While such efforts have been undertaken over the last four decades, it is only
in the last decade that multidimensional models have been developed, and only
in the last few years that significant components of supernova models, such as
the neutrino transport, have been modeled with sufficient realism. We can now
identify what are arguably the important components that must be included in
any realistic three-dimensional supernova model. The challenge we now face is
to include all of these in the models.
