Matthew Olsen News
Nice Attack: The Deadly 'Evolution' of Vehicles Turned Into Weapons
While mass-casualty terrorist attacks in the West have become commonplace , one facet of Thursday night's assault in Nice, France, appeared at first to be unusual: a truck, rather than bombs and guns, was used as the weapon of choice. The killer, identified today as 31-year-old Tunisian Mohamed
ABC News Special Coverage of Orlando Shooting
ABC News will have a one hour “20/20” Special Edition on the Orlando nightclub shooting tonight, June 12 (10:00-11:00 p.m. ET) on the ABC Television Network. “Nightclub Massacre: Terror in Orlando” will be anchored live by “World News Tonight” Anchor and “20/20” Co-Anchor David Muir from Orlando
ISIS Exploits Europe's 'Pre-9/11' Security Stance, Officials Say
An ISIS terror cell of more than a dozen suspected operatives was able to execute two large-scale attacks in major European cities in the span of four months in part because Europe is stuck in a "pre-9/11" security stance in which countries share borders, but little critical intelligence, a senior
Security Experts Analyze Impact of Brussels Terror Attacks
Former National Counterterrorism Center Director Matthew Olsen and former White House Counterterrorism Adviser Richard Clarke discuss terrorism threats in Europe.
Counterterrorism Experts Address Terror Threats Abroad
Former National Counterterrorism Center Director Matthew Olsen and former White House Counterterrorism Adviser Richard Clarke discuss terror threats in Europe.
'Failure in Nuclear Security': The Moldova Wake-Up Call
Dramatic video released overnight shows what authorities say are the early stages of a nightmare scenario for the U.S.: Criminal gangs with access to nuclear material from Russia, prepared to sell to ISIS. The videos, covering two raids conducted in Moldova in the last 10 months, show the plots as
Al Qaeda Leader Al-Zawahiri Declares War on ISIS 'Caliph' Al-Baghdadi
Just ahead of the fourteenth anniversary of al Qaeda's 9/11 attacks on the U.S., the leader of the terrorist group took aim in an angry speech at a mortal enemy -- but not American “crusaders” this time. Rather, the object of his tirade was the leader of ISIS in a declaration of war that will
Ask the Experts: Whether It Matters What We Call ISIS
“What’s in a name?” Of all the conversation generated from this week’s Summit to Counter Violent Extremism, the White House probably didn’t expect one of the biggest takeaways would be President Obama’s vocabulary. “We come together today because we are united against the scourge of extremism and
US Spies Struggle With Intel 'Gap' On Ground in Syria
The United States suffers from an intelligence "gap" on the ground in Syria , which has stymied the government's ability to track Western foreign fighters, including Americans, fighting there with ISIS and al Qaeda's affiliate, senior U.S. counter-terrorism officials told lawmakers today. "It is a
Eiffel Tower Lights Dim in Honor of Terror Attack Victims
Plus, an update on the search for the gunmen as the focus shifts north of Paris.