For too long, we've been blind to the way past injustices continue to shape the present. Perhaps we see that now. Perhaps this tragedy causes us to ask some tough questions about how we can permit so many of our children to languish in poverty, or attend dilapidated schools, or grow up without prospects for a job or for a career. Perhaps it causes us to examine what we're doing to cause some of our children to hate. Perhaps it softens hearts towards those lost young men, tens and tens of thousands caught up in the criminal justice system and leads us to make sure that that system is not infected with bias.