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This video is priceless. A Washington, DC, news crew goes down to Union Station to interview someone from Amtrak about people who have been stopped from taking pictures, even though there’s no policy against it. As the Amtrak spokesperson is explaining that there is no policy against photography, a guard comes up and tries to stop them from filming, saying it is against the rules.
EDITED TO ADD (6/7): More.
Impressive research:
At Saarland University, researchers trained a $500 telescope on a teapot near a computer monitor 5 meters away. The images are tiny but amazingly clear, professor Michael Backes told IDG.
All it took was a $500 telescope trained on a reflective object in front of the monitor. For example, a teapot yielded readable images of 12 point Word documents from a distance of 5 meters (16 feet). From 10 meters, they were able to read 18 point fonts. With a $27,500 Dobson telescope, they could get the same quality of images at 30 meters.
Here’s the paper:
Abstract
We present a novel eavesdropping technique for spying at a distance on data that is displayed on an arbitrary computer screen, including the currently prevalent LCD monitors. Our technique exploits reflections of the screen’s optical emanations in various objects that one commonly finds in close proximity to the screen and uses those reflections to recover the original screen content. Such objects include eyeglasses, tea pots, spoons, plastic bottles, and even the eye of the user. We have demonstrated that this attack can be successfully mounted to spy on even small fonts using inexpensive, off-the-shelf equipment (less than 1500 dollars) from a distance of up to 10 meters. Relying on more expensive equipment allowed us to conduct this attack from over 30 meters away, demonstrating that similar attacks are feasible from the other side of the street or from a close-by building. We additionally establish theoretical limitations of the attack; these limitations may help to estimate the risk that this attack can be successfully mounted in a given environment.
Massive investment in CCTV cameras to prevent crime in the UK has failed to have a significant impact, despite billions of pounds spent on the new technology, a senior police officer piloting a new database has warned. Only 3% of street robberies in London were solved using CCTV images, despite the fact that Britain has more security cameras than any other country in Europe.
[…]
Use of CCTV images for court evidence has so far been very poor, according to Detective Chief Inspector Mick Neville, the officer in charge of the Metropolitan police unit. “CCTV was originally seen as a preventative measure,” Neville told the Security Document World Conference in London. “Billions of pounds has been spent on kit, but no thought has gone into how the police are going to use the images and how they will be used in court. It’s been an utter fiasco: only 3% of crimes were solved by CCTV. There’s no fear of CCTV. Why don’t people fear it? [They think] the cameras are not working.”
This is, of course is absolutely no surprise.
Will we ever win the war on photographers?
Data from San Francisco:
Researchers examined data from the San Francisco Police Department detailing the 59,706 crimes committed within 1,000 feet of the camera locations between Jan. 1, 2005, and Jan. 28, 2008.
These were the total number of crimes for which police had reports—regardless of whether the crimes were caught on video. The idea was to look at whether criminals stopped committing crimes at those locations because they knew cameras were there.
Using a complicated method, researchers were able to come up with an average daily crime rate at each location broken out by type of crime and distance from the cameras. They then compared it with the average daily crime rate from the period before the cameras were installed.
They looked at seven types of crime: larcenies, burglaries, motor vehicle theft, assault, robbery, homicide and forcible sex offenses.
The only positive deterrent effect was the reduction of larcenies within 100 feet of the cameras. No other crimes were affected—except for homicides, which had an interesting pattern.
Murders went down within 250 feet of the cameras, but the reduction was completely offset by an increase 250 to 500 feet away, suggesting people moved down the block before killing each other.
The final report is expected to analyze the figures in more depth and to include other crimes, including prostitution and drug offenses.
This quote is instructive:
Mayor Gavin Newsom called the report “conclusively inconclusive” on Thursday but said he still wants to install more cameras around the city because they make residents feel safer.
That’s right: the cameras aren’t about security, they’re about security theater. More comments on the general issue here.
We finally have some actual information about the “liquid bomb” that was planned by that London group arrested in 2006:
The court heard the bombers intended to use hydrogen peroxide and mix it with a product called Tang, used in soft drinks, to turn it into an explosive.
They intended to carry it on board disguised as 500ml bottles of Oasis or Lucozade by using food dye to recreate the drinks’ distinctive colour.
The detonator would have been disguised as AA 1.5 batteries. The contents of the batteries would have been removed and an electric element such as a lightbulb or wiring would have been inserted.
A disposable camera would have provided a power source.
Any chemists want to take a crack at this one?
If you ever need an example to demonstrate that security is a function of agenda, use this story about speed cameras. Cities that have installed speed cameras are discovering motorists are driving slower, which is decreasing revenues from fines. So they’re turning the cameras off.
Perhaps a better solution would be to raise the fines to the remaining speeders to make up for the lost revenue?
EDITED TO ADD (3/31): Too many people thought that above comment was serious. It’s not. The whole incident illustrates why fines should never be considered part of a revenue stream: it gives the police a whole new agenda.
A British company has developed a camera that can detect weapons, drugs or explosives hidden under people’s clothes from up to 25 meters away in what could be a breakthrough for the security industry.
The T5000 camera, created by a company called ThruVision, uses what it calls “passive imaging technology” to identify objects by the natural electromagnetic rays—known as Terahertz or T-rays—that they emit.
The high-powered camera can detect hidden objects from up to 80 feet away and is effective even when people are moving. It does not reveal physical body details and the screening is harmless, the company says.
If this is real, it seems much less invasive than backscatter X ray.
Interesting article from Popular Mechanics on surveillance cameras—I’m quoted in several places. And this about watching back.
Sidebar photo of Bruce Schneier by Joe MacInnis.
