Entries Tagged "bombs"

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IEDs Are Now Weapons of Mass Destruction

In an article on the recent arrests in New York:

On Wednesday night, they planted one of the mock improvised explosive devices in a trunk of a car outside the temple and two mock bombs in the back seat of a car outside the Jewish center, the authorities said. Shortly thereafter, police officers swooped in and broke the windows on the suspects’ black sport utility vehicle and charged them with conspiracy to use weapons of mass destruction within the United States and conspiracy to acquire and use antiaircraft missiles.

I’ve covered this before. According to the law, almost any weapon is a weapon of mass destruction.

From the complaint:

… knowingly did combine, conspire, confederate and agree together and with each other to use a weapon of mass destruction, to wit, a surface-to-air guided missile system and an improvised explosive device (“IED”) containing over 30 pounds of Composition 4 (‘C-4″) military grade plastic explosive material against persons and property within the United States.

Posted on May 21, 2009 at 3:54 PM • View Comments

Surviving a Suicide Bombing

Where you stand matters:

The two researchers have developed accurate physics-based models of a suicide bombing attack, including casualty levels and explosive composition. Their work also describes human shields available in the crowd with partial and full coverage in both two- and three-dimensional environments.

Their virtual simulation tool assesses the impact of crowd formation patterns and their densities on the magnitude of injury and number of casualties of a suicide bombing attack. For a typical attack, the writers suggest that they can reduce the number of fatalities by 12 percent and the number of injuries by 7 percent if their recommendations are followed.

Simulation results were compared and validated by real-life incidents in Iraq. Line-of-sight with the attacker, rushing toward the exit and stampede were found to be the victims’ most lethal choices both during and after the attack.

Presumably they also discovered where the attacker should stand to be as lethal as possible, but there’s no indication that they published those results.

Posted on March 26, 2009 at 8:08 AM • View Comments

Research in Explosive Detection

Interesting:

Much of this research focuses on “micromechanical” devices—tiny sensors that have microscopic probes on which airborne chemical vapors deposit. When the right chemicals find the surface of the sensors, they induce tiny mechanical motions, and those motions create electronic signals that can be measured.

These devices are relatively inexpensive to make and can sensitively detect explosives, but they often have the drawback that they cannot discriminate between similar chemicals—the dangerous and the benign. They may detect a trace amount of TNT, for instance, but they may not be able to distinguish that from a trace amount of gasoline.

Seeking to make a better micromechanical sensor, Thundat and his colleagues realized they could detect explosives selectively and with extremely high sensitivity by building sensors that probed the thermal signatures of chemical vapors.

They started with standard micromechanical sensors—devices with microscopic cantilevers beams supported at one end. They modified the cantilevers so that they could be electronically heated by passing a current through them. Next they allowed air to flow over the sensors. If explosive vapors were present in the air, they could be detected when molecules in the vapor clung to the cantilevers.

Then by heating the cantilevers in a fraction of a second, they could discriminate between explosives and non-explosives. All the explosives they tested responded with unique and reproducible thermal response patterns within a split second of heating. In their paper, Thundat and his colleagues demonstrate that they could detect very small amounts of adsorbed explosives—with a limit of 600 picograms (a picogram is a trillionth of a gram). They are now improving the sensitivity and making a prototype device, which they expect to be ready for field testing later this year.

Here’s the paper, behind a paywall.

Posted on March 23, 2009 at 6:55 AM • View Comments

Holy Hand Grenade of Antioch Bomb Scare

You just can’t make this stuff up:

Buildings were evacuated, a street was cordoned off and a bomb disposal team called in after workmen spotted a suspicious object.

But the dangerous-looking weapon turned out to be the Holy Hand Grenade of Antioch, made famous in the 1975 film Monty Python And The Holy Grail.

[…]

They evacuated a pub and another building in Tabernacle Street, while office staff in another building were stopped from leaving.

But when the bomb squad arrived, they quickly established there was no danger and the street was declared safe. In the film, the grenade was used to slaughter a killer rabbit. …

Alberto Romanelli, who owns the Windmill pub nearby, said the police action in ordering his pub to be evacuated had been as ridiculous as the film scene. “They evacuated the pub while they were doing X-rays and stuff,” he said.

“It all lasted about 45 minutes before they decided it was nothing—which I thought was pretty obvious from the start. I lost a good hour’s worth of business.”

I used to catalog examples of the war on the unexpected, but stopped because they were just too many of them (see also here and here), but this one is just too funny to ignore.

EDITED TO ADD (3/20): Lest you think this is tabloid hyperbole, here’s the story in a more respectable newspaper.

Posted on March 20, 2009 at 3:10 PM • View Comments

Electromagnetic Pulse Grenades

There are rumors of a prototype:

Even the highly advanced US forces hadn’t been generally thought to have developed a successful pulse-bomb yet, with most reports indicating that such a capability remains a few years off (as has been the case for decades). Furthermore, the pulse ordnance has usually been seen as large and heavy, in the same league as an aircraft bomb or cruise missile warhead—or in the case of an HPM raygun, of a weapons-pod or aircraft payload size.

Now, however, it appears that in fact the US military has already managed to get the coveted pulse-bomb tech down to grenade size. Colonel Buckhout apparently envisages the Army electronic warfare troopers of tomorrow lobbing a pulse grenade through the window of an enemy command post or similar, so knocking out all their comms.

Posted on February 26, 2009 at 6:48 AM • View Comments

Remote Fireworks Launcher

How soon before these people are accused of helping the terrorists?

With around a thousand people in the UK injured every year by fireworks, a new electronic remote control ‘Firework Launcher’ will put safety first and ensure everyone enjoys the Christmas and new year celebrations.This innovative, compact device dramatically reduces the chance of injury by launching fireworks without a flame and at a safe distance—so all you need to worry about is how spectacular those fireworks really are!

Do fireworks kill more people than terrorists each year? Probably.

Posted on January 27, 2009 at 12:34 PM • View Comments

Michael Chertoff Claims that Hijackings were Routine Prior to 9/11

I missed this interview with DHS Secretary Michael Chertoff from December. It’s all worth reading, but I want to point out where he claims that airplane hijackings were routine prior to 9/11:

What I can tell you is that in the period prior to September 12, 2001, it was a regular, routine issue to have American aircraft hijacked or blown up from time to time, whether it was Lockerbie or TSA or TWA 857 [I believe he meant TWA 847 – Joel] or 9/11 itself. And we haven’t had even a serious attempt at a hijacking or bombing on an American plane since then.

BoingBoing provides the actual facts:

According to Airsafe.com, the last flight previous to 9/11 to be hijacked with fatalities from an American destination was a Pacific Southwest Airlines flight on December 7th, 1987. “Lockerbie” refers to Pan Am Flight 103 which was destroyed by a bomb over Scotland after departing from London Heathrow International Airport on its way to JFK, with screening done—as now—by an organization other than the TSA. TWA Flight 847 departed from Athens (Ellinikon) International Airport, also not under TSA oversight.

While Wikipedia’s list of aircraft hijackings may not be comprehensive—I cannot find a complete list from the FAA, which does not seem to list hijackings, including 9/11, in its Accidents & Incidents Data—the last incident of an American flight being hijacked was in 1994, when FedEx Flight 705 was hijacked by a disgruntled employee.

The implication that hijacking or bombing of American airline flights is a regular occurrence is not borne out by history, nor does it follow that increased screening by the TSA at airports has prevented more attacks since 9/11.

Posted on January 16, 2009 at 5:24 AM • View Comments

Matthew Alexander on Torture

Alexander is a former Special Operations interrogator who worked in Iraq in 2006. His op-ed is worth reading:

I learned in Iraq that the No. 1 reason foreign fighters flocked there to fight were the abuses carried out at Abu Ghraib and Guantanamo. Our policy of torture was directly and swiftly recruiting fighters for al-Qaeda in Iraq. The large majority of suicide bombings in Iraq are still carried out by these foreigners. They are also involved in most of the attacks on U.S. and coalition forces in Iraq. It’s no exaggeration to say that at least half of our losses and casualties in that country have come at the hands of foreigners who joined the fray because of our program of detainee abuse. The number of U.S. soldiers who have died because of our torture policy will never be definitively known, but it is fair to say that it is close to the number of lives lost on Sept. 11, 2001. How anyone can say that torture keeps Americans safe is beyond me—unless you don’t count American soldiers as Americans.

Also, this interview from Harper’s:

In Iraq, we lived the “ticking time bomb” scenario every day. Numerous Al Qaeda members that we captured and interrogated were directly involved in coordinating suicide bombing attacks. I remember one distinct case of a Sunni imam who was caught just after having blessed suicide bombers to go on a mission. Had we gotten there just an hour earlier, we could have saved lives. Still, we knew that if we resorted to torture the short term gains would be outweighed by the long term losses. I listened time and time again to foreign fighters, and Sunni Iraqis, state that the number one reason they had decided to pick up arms and join Al Qaeda was the abuses at Abu Ghraib and the authorized torture and abuse at Guantanamo Bay. My team of interrogators knew that we would become Al Qaeda’s best recruiters if we resorted to torture. Torture is counterproductive to keeping America safe and it doesn’t matter if we do it or if we pass it off to another government. The result is the same. And morally, I believe, there is an even stronger argument. Torture is simply incompatible with American principles. George Washington and Abraham Lincoln both forbade their troops from torturing prisoners of war. They realized, as the recent bipartisan Senate report echoes, that this is about who we are. We cannot become our enemy in trying to defeat him.

EDITED TO ADD (1/13): Yet another interview.

Posted on December 30, 2008 at 6:37 AM • View Comments

Gunpowder Is Okay to Bring on an Airplane

Putting it in a clear plastic baggie magically makes it safe:

Mind you, I had packed the stuff safely. It was in three separate jars: one of charcoal, one of sulphur, and one of saltpetre (potassium nitrate). Each jar was labeled: Charcoal, Sulphur, Saltpetre. I had also thoroughly wet down each powder with tap water. No ignition was possible. As a good citizen, I had packed the resulting pastes into a quart-sized “3-1-1” plastic bag, along with my shampoo and hand cream. This bag I took out of my messenger bag and put on top of my bin of belongings, turned so that the labels were easy for the TSA inspector to read.

Posted on December 29, 2008 at 7:05 AM • View Comments

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Sidebar photo of Bruce Schneier by Joe MacInnis.