I am writing these words during the height of the holidays, when families all across America are rejoicing and happy and filled with glad tidings. That may be a bit of an oversentimentalization of this time between Christmas and New Year’s, as there is always sorrow and discomfort and pain somewhere, no matter what the season. But mostly, it’s a happy time. However, this year there is grief so palpable, so raw and so excruciating emanating from Newtown, Conn., that it’s hard to see through to the joy this time of year normally holds.