When a pothead hears that marijuana causes shrunken brains and schizophrenia his first instinct is to light up. Now, Bob Enyart adds to the renowned rsr.org/pot page the latest research explaining how pot mutates DNA and causes serious disease including cancer. Related: Hillary's caught in two more whopper email lies; the meanest Hillary meme ever at kgov.com/hillary liberal minimum wage activists speed up automation so a million more workers will become unemployed.