Bill Whitaker and 60 Minutes cameras were permitted to visit and report from Russia's main military base in Syria, where the Russians are waging an air war against the enemies of Syrian President Bashar al-Assad; Three unjustly convicted people who spent years in prison and then were exonerated tell Scott Pelley how they are adjusting to being free; Charlie Rose reports on an unorthodox musical with a diverse cast about the life of Alexander Hamilton that is creating waves on Broadway and beyond while it smashes box office records.