Happy Halloween; Tracy Smith covers nightmares; photographer Josh Rossi; Norah O'Donnell interviews Huma Abedin (author, "Both/And: A Life in Many Worlds"), Hillary Clinton's former aide; photographer Bryan Sansivero (author, "American Decay"); Seth Doane interviews Swedish super group ABBA (album, "Voyage"); actor Kal Penn (author, "You Can't Be Serious"); magician Shin Lim; dads who act as peacekeepers at their local public school.
—anonymous