We welcome Jim Edwards back to the blogging fray, and note from his bio that he specialized in writing about drug pricing and drug R&D while at Columbia J-School (my own alma mater). Today's excellent post goes through the numbers in a New York Times article on the growing number of kids on drugs due to the obesity epidemic, and finds them implausible. Lesson to young journalists: It never hurts to haul out the back of the envelope and do your own math!