Is this terror or a mass killing?

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Is this terror or a mass killing?

Following the shooting in Munich CNN's Atika Shubert discusses the difference between mass killings and terrorist attacks.

01:56 - Source: CNN

Thwarted terror plots 15 videos

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Is this terror or a mass killing?

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Man accused of plotting attack at parade

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Armed police operate in Saint-Denis, a northern suburb of Paris, Wednesday, Nov. 18, 2015. Police say two suspects in last week's Paris attacks, a man and a woman, have been killed in a police operation north of the capital. Two police officers have been injured in the standoff. Police have said the operation is targeting the suspected mastermind of last week's attacks, believed to be holed up in an apartment in Saint-Denis with several other heavily armed suspects. (AP Photo/Francois Mori)

What to do in the event of a terror attack

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The psychology of terror

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PARIS, FRANCE - NOVEMBER 13: A medic tends to a man November 13, 2013 in Paris, France. Gunfire and explosions in multiple locations erupted in the French capital with early casualty reports indicating at least 60 dead. (Photo by Thierry Chesnot/Getty Images)

When is something 'terrorism'?

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Four arrested in alleged airplane terror plot

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What FBI director wants Americans to know about terror

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An injured woman leaves the scene at Brussels airport after explosions rocked the facility Tuesday morning.

The vulnerability of 'soft targets' to terror

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The operations center of the Terrorist Screening Center

An exclusive look inside the Terrorist Screening Center

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Washington, UNITED STATES: The terrorist threat advisory is seen 10 August, 2006 at Ronald Reagan National Airport, in Washington, DC. After Britain said 10 August it had thwarted a plot to wreak "mass murder" by the simultaneous mid-air bombings of planes to the United States, the US raised the threat level to "severe" or "Red" for all commercial flights flying from Britain to the United States, and "high" or "Orange" for all commercial aviation operating in the United States, including international flights. AFP PHOTO / TIM SLOAN (Photo credit should read TIM SLOAN/AFP/Getty Images)

Train heroes honored for thwarting attack

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How vulnerable are citizens to terror attacks?

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In this photo provided by Christina Cathleen Coons, a person lies on the floor after an incident on a high-speed train traveling from Amsterdam to Paris on Friday, Aug. 21, 2015. A gunman opened fire on the train wounding several people before American passengers subdued him, according to officials and one of the Americans involved. (Christina Cathleen Coon via AP)

Exclusive cell phone video from inside train

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FBI: Several July 4th terror attacks thwarted

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American teen arrested in alleged ISIS plot

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New details released in Boston terror plot

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