President Obama said the FBI is investigating Monday's twin bombings at the Boston Marathon "as an act of terrorism." Meanwhile, law enforcement officials are asking the public to submit photos and videos from the scene. And Boston Mayor Tom Menino said that as the city grieves the victims it is also proud of those who helped in the explosions' aftermath.
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.
Morning Edition co-hosts Steve Inskeep and David Greene discuss the investigation of Monday's Boston Marathon explosions with Roger Cressey, a former counterterrorism investigator and member of the National Security Council, and NPR's Dina Temple-Raston.
Two explosions took place in short order at the finish line of Monday's race as runners were still coming through. Many serious injuries and at least three deaths have been confirmed. The FBI is leading the investigation through the joint terror task force.
Investigators are working to determine who is responsible for the explosions at the Boston Marathon. At least three people were killed. Sources told NPR it could take some time before officials can definitively say who was behind this.
The CIA has morphed from a traditional espionage service concerned with stealing the secrets of foreign governments into an organization consumed with hunting down its enemies. New York Times journalist Mark Mazzetti chronicles this transformation in a new book, The Way of the Knife.
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