• Extremism rising and more vicious: Expert  Wednesday, 17 Dec 2014 | 8:45 AM ET

    David Gordon, International Capital Strategies, discusses the increase in violent terrorist acts around the globe.

  • Sydney mayor: 'Siege won't change us'  Tuesday, 16 Dec 2014 | 7:21 PM ET

    Clover Moore, Mayor of Sydney, tells CNBC's Matthew Taylor that the honoring of hostages killed in the siege is "consoling" and Sydney remains as a "tolerant and inclusive" city after the tragedy.

  • Sydney won't be defeated by tragic event  Tuesday, 16 Dec 2014 | 5:30 AM ET

    Sydney's Lord Major, Clover Moore says Australia will not be defeated by this hostage event. CNBC's Matt Taylor reports more on how Australia's public has coped.

  • Australian police could have done better: Expert  Monday, 15 Dec 2014 | 10:33 PM ET

    Ameer Ali, Former President of the Australian Federation of Islamic Councils, outlines what the Australian police have fallen short in doing while resolving the hostage incident in Sydney.

  • After the Sydney hostage crisis, the hashtag "I'll ride with you" started trending overnight, aimed at spreading a message of tolerance across the country.

  • Keith Suter, Foreign Affairs Editor at Channel 7, describes the gunman as a "lone activist with an appalling criminal record" and the hostage incident shouldn't be linked to Australia's war on terror.

  • Should the world be alarmed by Sydney's siege?  Monday, 15 Dec 2014 | 8:39 PM ET

    Angel Rabasa, Senior Political Scientist at RAND, says Australia's hostage incident can occur in any country and the world is facing the greatest jihadist threat since 9/11.

  • Sydney siege: What could have prevented it?  Monday, 15 Dec 2014 | 6:33 PM ET

    Terrorism acts are evolving into small-scale activities and western democratic societies face "significant limitations" in stopping them, says Levi West, Lecturer, Terrorism and National Security at Charles Sturt University.

  • Sydney siege ends after shootout; three dead  Monday, 15 Dec 2014 | 6:09 PM ET

    The lone gunman was among the three killed after police stormed a cafe to end the 16-hour siege in Sydney. CNBC's Matthew Taylor reports from Martin Place.

  • Sydney siege: Understanding lone wolf terrorism  Monday, 15 Dec 2014 | 5:11 PM ET

    Anthony Roman, Founder & CEO at Roman & Associates, describes the hostage taker in Australia's cafe siege as a "lone wolf threat", which is the most difficult type of threat to guard against.

  • Australian PM addresses Sydney siege  Monday, 15 Dec 2014 | 4:29 PM ET

    Australian Prime Minister Tony Abbot holds a briefing after 17 hostages were held at the Lindt Cafe for over 16 hours. Two hostages died and four others were injured.

  • Australians take to Twitter to support Muslims Monday, 15 Dec 2014 | 2:29 PM ET
    People run with there hands up from the Lindt Cafe, Martin Place during a hostage standoff on December 15, 2014 in Sydney, Australia. Police stormed the Sydney cafe as a gunman has been holding hostages.

    Australians offered to travel with Muslim Australians who feared they might be targeted because of their religious affiliations.

  • Sydney hostage stand-off's tragic ending  Monday, 15 Dec 2014 | 1:07 PM ET

    CNBC's Mandy Drury says there are reports three people have died after hostages were held at the Lindt Cafe for over 16 hours, and insight to who the alleged gunman Shiekh Haron is.

  • Just the beginning for Australia: Rafiq  Monday, 15 Dec 2014 | 1:07 PM ET

    After hostages were held at the Lindt Cafe for over 16 hours, former UK government counter extremism task force member Haras Rafiq of Quilliam Found, weighs in on just what the gunman may have wanted.

  • Police: Cafe siege isolated incident  Monday, 15 Dec 2014 | 1:07 PM ET

    New South Wales Police hold a news conference after 17 hostages were held at the Lindt Cafe for over 16 hours. Two hostages died and four others were injured.

  • Footage of Australia gunman Sheikh Haron  Monday, 15 Dec 2014 | 11:30 AM ET

    CNBC's Kayla Tausche shows footage of alleged Australian gunman Sheikh Haron.

  • How US preps for potential terror attack  Monday, 15 Dec 2014 | 11:28 AM ET

    Former Assistant Secretary for the Department of Homeland Security, Bob Liscouski, discusses how the United States is preparing for, and would deal with a terrorist attack similar to the one that took place in Australia.

  • Former U.S. Ambassador to Australia, Edward Gnehm, discusses how social media makes it easier for extremists to communicate and carry out terrorist actions.

  • Flash bangs & stun grenades disable gunman: 7 News  Monday, 15 Dec 2014 | 11:06 AM ET

    Reporters from Australia's 7 News provide the latest details on the events that lead to the police storming the Australia cafe and taking the gunman down.

  • Sydney hostage siege over: Police  Monday, 15 Dec 2014 | 10:45 AM ET

    CNBC's Carl Quintanilla says police are reporting the situation in Australia is over. Mandy Drury reports 2 people are dead and 3 are gravely injured, and there is no word on the state of the hostage taker.