Sunday, April 21st on Square Off with Richard Sher , former Baltimore Police Commissioner and Terrorism expert Fred Bealefeld joins the panel to talk about the Boston Marathon bombings. Is there any way to stop these attacks? Is Baltimore vulnerable? How safe are we, really. Joining Commissioner Bealefeld is Professor Rick Vatz, Catalina Byrd, Nicolee Ambrose, and Michel Modell. Sunday, April 21st, 11a.m. WMAR ABC2. Don’t miss this terrorism special.