What will it mean when most of us can afford to have the information in our DNA – all six billion chemical letters of it – read, stored and available for analysis?  “Cracking Your Genetic Code” reveals that we stand on the verge of such a revolution.  Meet a cancer patient who appears to have cheated death and a cystic fibrosis sufferer breathing easily because scientists have been able to pinpoint and neutralize the genetic abnormalities underlying their condition.