(Bloomberg) -- Don Borelli, Chief Operating Officer at The Soufan Group, discusses the intelligence collected from the Boston bombing and the ongoing investigation. He speaks on Bloomberg Television's "Bloomberg Surveillance." (Source: Bloomberg)
Investigators are following every lead after yesterday's bombings at the Boston Marathon. Host Michel Martin speaks with Don Borelli, a former FBI special agent on terrorism, to hear how investigators piece together a crime like this, and determine who is responsible...
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Former FBI special agent Donald Borelli talks with MSNBC's Chris Hayes about the next steps in the investigation into the Boston Marathon explosions.
Former FBI assistant special agent and COO of The Soufan Group, Don Borelli discusses the big job ahead of officials investigating the Boston Marathon explosions.