About a month ago, Michael Fumento, an excellent conservative writer specializing in issues of medicine and law, published an article in The New Republic about ADHD (Attention Deficit Hyperactivity Disorder). Fumento took on the numerous conservatives who have raised public questions about the prevalence and definition of ADHD, and about what skeptics believe to be a too quick tendency to prescribe the drug Ritalin to treat ADHD. Now Mary Eberstadt, one of the conservative skeptics criticized by Fumento, has responded in a letter to The New Republic, followed by a reply from Fumento.