Sgt. Tre Pennie a 21 year veteran of the Dallas Police Force, now retired, and President of the Dallas, Texas National Fallen Officer Foundation and Curtis Sliwa, a NY radio and TV personality, and the founder of the grassroots organization, The Guardian Angels join today to discuss the attack in Brooklyn on NYC subway this morning on an 8:30 a.m. Manhattan-bound N train at the 36th Street station in Sunset Park. Sliwa knows the subway system in NY better than anyone else and can talk about the layout, design and potential ways that these bombs could have been placed and how the perpertrator could have escaped.