Topic: Terrorism
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How Toronto's Muslim Community Helped Catch the Would-Be Train Bombers
Religious groups can be capable -- and sometimes incredibly deft -- at policing extremists within their own ranks.
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The Psychology of a Citywide Lockdown
People around Boston didn't stay inside Friday because the city forced them to. And this distinction matters.
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Maps
The Geography of the Boston Marathon Manhunt
Much of last night's action took place in Cambridge and Watertown, a western suburb of Boston.
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Boston, Suburbs on Lockdown; a 'Terrifying Scene'
All transit has been suspended; residents urged to remain in their homes. Police are conducting a door-to-door manhunt for second bombing suspect.
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Postcard
'Boston, You're My Home'
Makeshift memorials from around the city.
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What It Feels Like to Be a Boston Alum Right Now
There are millions of men and women wandering around America who spent the best years of their lives in this city.
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Why the Boston Marathon Is an Especially Sinister Target for Terror
The bombings have turned all the cues and surroundings of this time of year upside down.
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There Is Almost Definitely Camera Footage of the Boston Marathon Attackers ... Somewhere
The city of Boston is blanketed with security cameras. But finding the right shots is a little like looking for a needle in a hay stack.
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A World Without Trash Cans?
Early reports suggest at least one of the bombs used in yesterday's Boston Marathon attack was hidden in a garbage can. There's a case to be made for removing them all.
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Major U.S. Cities Remain on High Alert Following Boston Marathon Attacks
New York, Los Angeles, and Washington, D.C. have stepped up police presence on transit, at tourist attractions, and near hotels.

