amateur video Amedy Coulibaly
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What makes sleeper cells so dangerous
Situation Room
In light of the terror attacks in Paris and the raid on terror suspects in Belgium, Brian Todd looks at how sleeper cells work and the danger they pose.
1:58 • Source: CNN
Belgium Terror Raids 18 videos
amateur video Amedy Coulibaly
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What makes sleeper cells so dangerous
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paris terror suspect salah abdeslam captured alive sot nr_00005218
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Paris terror suspect captured, injured in raid
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Salah Abdeslam, Paris terror suspect, captured
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U.S. teen survives two terrorist attacks
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Paris-attackers_Salah-Abdeslam
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Source: Paris terror suspect captured, injured but alive
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PARIS, FRANCE - MARCH 04: French President Francois Hollande makes a statement next to German Chancellor Angela Merkel during a press conference at the Elysee Presidential Palace on March 04, 2016 in Paris, France. Angela Merkel is received by Francois Hollande to prepare the EU-Turkey summit on the crisis of migrants on March 07 in Brussels. (Photo by Thierry Chesnot/Getty Images)
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Pres. Hollande: I am thinking of the victims right now
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Belgium Paris suspect fingerprints found elbagir _00001524.jpg
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Paris suspect Abdeslam captured alive
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Belgian policemen stand guard the road during a police action in the Molenbeek-Saint-Jean district in Brussels, on March 18, 2016. A police operation was underway on March 18, in the Brussels area home to key Paris attacks suspect Salah Abdeslam whose fingerprints were found in an apartment raided this week, the federal prosecutor's office said. / AFP PHOTO / BELGA / JAN NAGELS / Belgium OUTJAN NAGELS/AFP/Getty Images
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2 suspects captured in Belgian terror raid
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brussels belgium raid elbagir wt_00002619.jpg
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Escape route 'easy' for Brussels terror suspects
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Two suspects on the run in Brussels, another hospitalized
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Brussels police say powder at mosque was flour
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Soldiers stand guard at Brussels' Jewish museum in the wake of Thursday's terror raid in eastern Belgium,
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Greece investigating ties to Belgian terror plot
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Belgium police foil 'imminent' terror attacks
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Belgium terror raid caught on video
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Report: Belgian terrorists wanted to behead official
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Witness describes filming of terror raid in Belgium
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Prosecutor: 'Major imminent attacks' foiled
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Belgium: Raid foiled imminent attack
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