Chancellor Walcott on Test Scores; Public Advocate Candidates; Back-to-School Football

Schools chancellor Dennis Walcott discusses this year's lower standardized test scores and takes your calls. Plus: Public advocate candidates Cathy Guerriero, Letitia James, Reshma Saujani and Daniel Squadron each make their case; and The New York Times sports columnist William Rhoden discusses whether or not football is too dangerous for high school.