Our scary but inevitable future.
Russia has 40,000 police and military staff on the ground for the Olympics. Will it be enough?
A community beset by crime, and the intrusive tools they're using in hopes of stopping it.
An unusual argument against Big Brother on city streets.
Officials say that the ban is necessary to protect people's privacy. Is that so?
Religious groups can be capable -- and sometimes incredibly deft -- at policing extremists within their own ranks.
Urban manhunts have captivated cities and provided fodder for a frenzied 24-hour media. But at what cost?
People around Boston didn't stay inside Friday because the city forced them to. And this distinction matters.
Much of last night's action took place in Cambridge and Watertown, a western suburb of Boston.
There are millions of men and women wandering around America who spent the best years of their lives in this city.
The bombings have turned all the cues and surroundings of this time of year upside down.
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.
New York, Los Angeles, and Washington, D.C. have stepped up police presence on transit, at tourist attractions, and near hotels.
In Bishkek, public officers and private security companies compete for business.
In the end, the Olympics have helped the city achieve in a decade what might otherwise have taken two or three.
One former war correspondent compared it to the "American military bases in Iraq and Afghanistan."
Dozens of G4S staff failed to turn up for guard duty at a Manchester hotel hosting Olympic athletes.
The British Armed Forces could provide up to 16,500 personnel for the Olympics, 7,000 more than are in Afghanistan.
Will Olympic security measures go too far?
Organizers of the London games have taken unprecedented measures to stop "lone wolves" from wreaking havoc. But that hasn't stopped them from making them a central part of this summer's festivities.