Breaking This Morning: State Senator Malcolm Smith and city Councilman Dan Halloran have been arrested on charges of trying to fix this year's mayoral race. We'll be monitoring all morning. Plus: A new study reports a 53% increase in the number of children over the last decade diagnosed with ADHD. New York Times health reporter Alan Schwarz explains the findings and takes your calls. Maya Angelou discusses her new book on how being raised by her grandmother impacted her relationship with her mother; Public Advocate Bill de Blasio on paid sick leave; John Elder Robison talks about life with Asperger's Syndrome and raising a son who shares his condition; and the World Peace Game's lessons on cooperation.