• My Gen. Barry McCaffrey (Ret), how unrest in Russia and Chechnya may have sparked the terror attack in Boston.

  • Giuliani Wonders About the Chechen Connection     Friday, 19 Apr 2013 | 10:27 AM ET

    CNBC's Bertha Coombs provides a recap on the police search for the suspects in Boston's bombing. And, former New York City Mayor Rudy Giuliani, discusses why he is confused the suspects targeted the United States.

  • Greg Steinbrecher, MIT's "The Tech" reporter, reveals how students at MIT are responding to the death of a campus police officer; shot and killed in last night's capture of the Boston bombing suspect.

  • Van Harp, former Asst. Dir. of D.C. FBI field division, explains the tactics and techniques used in tracking down the Boston bombing suspects. And, CNBC's Courtney Reagan reports the latest details on Friday's market activity.

  • Manhunt Expands to Additional Suspects     Friday, 19 Apr 2013 | 10:00 AM ET

    Bertha Coombs reports authorities appear to be looking for more than one suspect in the Boston Marathon bombings.

  • CNBC's Scott Cohn talks with Watertown resident Donna Michaud about police activity in her neighborhood, as authorities search for the bombing suspects. And, CNBC's Bertha Coombs has the update on the expanded search.

  • A Third Suspect in Boston Attack?     Friday, 19 Apr 2013 | 9:53 AM ET

    CNBC's Bertha Coombs reports authorities are now looking for another "person of interest," in connection with the Boston bombing.

  • Massive Manhunt for Bombing Suspect     Friday, 19 Apr 2013 | 9:40 AM ET

    Carl Quintanilla updates an enormous manhunt in Watertown, MA for a suspect in the Boston Marathon bombings.

  • Mitchell Silber, K2 Intelligence executive managing director, considers whether there are oversea links in the terrorist bombings in Boston. And, Rep. Peter King, (R-NY), explains why he hopes the remaining suspect is not killed, when police finally capture him.

  • Stock Market Opens For Business As Usual     Friday, 19 Apr 2013 | 9:28 AM ET

    The "Squawk on the Street" news crew report on today's business news, including SeaWorld's IPO. And, CNBC's Bertha Coombs reports the latest details on police efforts to capture the remaining Boston bombing suspect, with CNBC's Scott Cohn.

  • City of Boston a 'Ghost Town': Hogan     Friday, 19 Apr 2013 | 9:18 AM ET

    Art Hogan, Lazard, discusses what it is like in Boston now that the city is in virtual lockdown; and provides an outlook on what to expect in today's markets. Also, Larry Glazer, Mayflower Advisors, describes what it is like in Newton, Ma, and the surroun

  • Mitchell Silber, K2 Intelligence executive managing director, discusses the motivation behind the terrorist attack. And, former Boston Mayor Ray Flynn, shares his insights on public safety, and the importance of human intelligence.

  • Police Zeroing in on the Suspect     Friday, 19 Apr 2013 | 8:53 AM ET

    CNBC's Bill Griffeth reports live from his hotel on the events unfolding in Boston. And, James Cavanaugh, former ATF special agent, discusses the key tactical resources used in tracking down the final suspect.

  • "This looks to me like a closed cell," says Philip Mudd, CIA's Counterterrorist Center, discussing whether or not there are likely others involved in the Boston bombing.

  • Capturing Boston Bomber Alive: Expert     Friday, 19 Apr 2013 | 8:20 AM ET

    Chad Sweet, former CIA director of operation, explains why it's important to capture the suspect alive, if possible, for interrogation.

  • CNBC's Scott Cohn has the latest details on the hunt for the Boston bombing suspect. And, Ian Bremmer, Eurasia Group president, addresses reports that the two suspects, identified as brothers, are from Russia, near Chechnya. Also, Peter Grupe, former SAIC/NY FBI, talks about the scope of the search for the remaining suspect.

  • Gov. Patrick: This is an Active Manhunt     Friday, 19 Apr 2013 | 8:00 AM ET

    Massachusetts Governor Deval Patrick gives an update on the search for the suspect in the Boston bombing.

  • Boston Terrorist Timeline: Coombs     Friday, 19 Apr 2013 | 8:00 AM ET

    CNBC's Bertha Coombs follows the events that led up to the killing and hunt for the Tsarnaev brothers.

  • Why Boston Bombers Targeted US: Woolsey     Friday, 19 Apr 2013 | 7:51 AM ET

    James Woolsey, former CIA director, discusses the ideological impulses behind terrorist targets.

  • 'These Folks Are Hardcore': Security Expert     Friday, 19 Apr 2013 | 7:38 AM ET

    John Timoney, former Miami police chief, provides a profile of terrorists and terrorist pods and the techniques law enforcement uses to keep them under surveillance and eventually catch them. And, CNBC's Scott Cohn reports the latest details on the police investigation in Boston.