There are lots of 'idols' these days. But do you have any heroes? What's the difference? Idols are people we say we 'adore' because they are famous- or rich- or good looking- or because they have amazing talents- or special abilities perhaps we wish we could have. Heroes are people who are willing to live and die for what they believe.POLYCARP OF SMYRNA: THE MAN WHOSE FAITH LASTED tells the sto…