Dick Gordon speaks with longtime Boston Marathon announcer and runner Kathrine Switzer. She was covering the event on Monday and witnessed the explosions. She says the event may have been targeted because it is a symbol of freedom.
Tim Harrison, a retired public safety officer from the suburbs of Dayton, Ohio, is an expert in the safe handling of exotic animals. He advised responding authorities last October when a man released 56 exotic animals from a rural farm in Zanesville, Ohio.