espanol polski  
espanol polski

 

 
 
 

 

Understanding the Threat of Cell Phones Used by Terrorists in Remote Controlled Bombs.
by Howard Melamed, CEO CellAntenna Corporation

Cell Phones are one of the most important communication devices ever engineered.  They are used by more than 2.6 billion people worldwide with more than 240 million users in the United States alone.  However they are also the number one triggering device used by terrorists  proven by the recent discovery of the plot to blow up airplanes in a 9/11 style of terrorism. As well recent worries by law enforcement authorities concerning the purchase of pre-paid cell phones brings the issue close to home.  What exactly is the threat of cell phones and why are the authorities so worried about it?

Almost a year and a half ago, in January of 2005, the FCC and FAA were considering allowing the use of cell phones on airplanes.  At that time we had issued a press release indicating our concern for the safety of passengers and confirmed the fact that the cell phone can be a deadly part of weapons used by terrorists.  Finally, in July of 2005, the Department of Homeland Security came out in support of our objections and also indicated their concerns. However there was never any explanation given. I offer the following article for the purposes of understanding the threat and possibly influencing those people involved in making the decisions regarding our safety.

Why are cell phones used by terrorists?

1.  Easily concealed:  No one until recently was looking at them as any sort of a threat. With more than 1,5 billion users, and more than 3 billion cell phones available  including the ones most of the population hangs on to after upgrading their cell phones,  the supply is impossible to control and terrorists can get access to them without suspicion. ( except when purchasing them in large quantities at a department store).

2.  Battery Power:   The electrical properties for most batteries used today in cell phones are 3.6 volts at 1.2 amp. or roughly 5 watts of energy. This is enough energy to produce the necessary 'spark' or power required to detonate a blasting cap or modified electrical match.  This detonation is used to supply the energy needed to explode plastic explosives.

3. Mechanism in place to turn the cell phone  into a bomb triggering device: The vibration circuit of the cell phone consists of a small motor with an unbalanced cam, that causes the phone to shake.  This is similar to an unbalanced tire on your car that causes your car to vibrate.  This motor is attached to the cell phone circuit via 2 leads.  These leads are positive and negative DC at 3.6 volts and can either directly power the detonator, or can be connected to a small relay attached an outside larger electrical source. 

4. Easy to modify: No manufacturer today  makes it difficult to open a cell phone. It is easy and can be done in a matter of seconds.  As a result the terrorist quickly and safely modifies the cell phone. He then puts the cell phone back together without any exterior indication that it was tampered with.

5. Untraceable:  The Terrorist can  use cell phones from countries outside of the United States with SIM cards either stolen or falsely subscribed to.  As well, they buy pre-paid cell phones at department stores for cash where no name is given or asked in order to activate the cell phone service.  As well, current world roaming agreements means that any cell phone can be used almost anywhere.

6. Deliverable: It is easy for the terrorist to combine a cell phone and plastic explosive and send it around the country by a parcel delivery service or even a postal service.

7. Addressable: The cell phone can be made to react in a certain manner to a phone call placed.  With Caller ID the cell phone can be set to vibrate when a certain number is received.  This provides the terrorist with a safety factor, as only when a call from the programmed number is received would the phone's vibration circuit trigger a detonation. This is what was used by terrorists in the Bali Bombings, and is being used by terrorist in Iraq as one of the means of detonating Improvised Explosive Devices (bombs).

8. Accurate Timer : The cell phone has an alarm function that was provided to consumers as one of those conveniences to use to wake them up, or remind them of an  appointment. As well, this time on the cell phone is kept accurate by the towers that communicate with them several times an hour.  The cell phone is set to vibrate when the alarm goes off and this triggers the detonator attached to the vibration circuit. This is what was used in the Madrid Spain train bombings and was suspected in the London bombings as well.

9. Authorities Are Unprepared to Counter Threat.  Terrorists know that for the most part our law enforcement agencies have  no plan of action in case of cell phone bombs.  Currently there is no communication between local, state and federal authorities with Cellular providers and tower owners across the country should terrorist launch and attack using cell phone detonated bombs. There is plan of action to shut down a tower, or scramble the timer in a cell phone if a 9/11 situation were to occur using cell phone bombs.

10. Bomb Squads lack Jamming Equipment to prevent detonation:  Terrorist know that our First Responders, local and state law enforcement agencies lack the equipment necessary to stop a bomb from exploding.  The current communications act was passed by congress in 1934.  The law states that only the Federal Government is allowed to interfere with radio frequency communication. The FCC enforces this law and as such local, and state law enforcement agencies do not have the equipment necessary to prevent any remote control device from blowing up once found, including a cell phone controlled bomb. The local bomb squad, which is considered the First Responders, cannot purchase or use jamming equipment even though they may find a suspicious package with an antenna stick out of it. They must wait for the FBI to come to the scene. This is ok in large cities with an FBI department that may or may not have the jamming equipment, but in smaller cities and other prime rural targets, the time wasted will be lethal.

11. The Battery can be made to explode: Cell Phones deploy a Lithium Ion Cobalt battery as its source of power, the same composition as laptop computer batteries.  Lithium Ion Cobalt is unstable and requires an electrical circuit to protect it from rapidly discharging in case of shorting the contacts, or from overcharging. However, if this circuit is removed, or in the case of some imported batteries, either damaged or non-existent, the battery can either explode or flame up. This is not fiction. The Consumer protection Department has come out with a warning, a large cellular carrier and Kyocera had issued a recall of millions of cell phone batteries. As well, Sony and Nokia both issued warnings to consumers that batteries bought from outside sources may explode. Most recently, Dell has issued a recall on their batteries used on millions of computers. The reason the Lithium Ion Cobalt is used, is mostly a matter of 'bang for the buck' if you would excuse the expression. The battery basically provides a consistent source of energy at a relatively low cost.  Currently there is no standard in place by law that regulates these batteries. It is easy for a terrorist to convert a cell phone into a flammable device and cause it to flame or explode. this provides an increase danger to airplanes including the cargo holds.

Reducing the Threat with Common Sense.

In a recent flight I took between London Heathrow and Miami,  I laughed  once again, when I heard the flight attendant  announcing in a nice gentle voice:

 " We have closed the hatch and as such we kindly request that all passengers turn off their cell phones and keep them off due to the fact that they interfere with navigational equipment".

 I have often commented to flight attendant if they actually believed that the cell phone was a threat to the equipment, and if so, how do they feel when the plane lands at the destination, and all of a sudden all of the cell phones that the passengers forget to turn off start to ring and beep. Where we really at risk during the flight? Common Sense. That is what I tell people.  Common sense would dictate that if the cell phone signal were really a threat no passenger would be allowed to walk on board with one.  The Flight Attendant checks to make sure that we are all wearing our seatbelts, but the device that would bring down an airplane in flight if a passenger were remised and forgot to turn it off is to say the least ...ridiculous. 

However, the threat of a cell phone used as a triggering device is realistic.  It is quite important that we face the reality of the situation with regard to the terrorist threat in using cell phones to remote detonate bombs.  Common sense really needs to prevail.  In all of the examples of why cell phones are a threat ,  there are logical solutions to reducing the threat of Cell phones used by terrorists.

Here are some of them:

1. Do not allow Cell phones on airplanes. They should be checked in with the battery removed.

2. Make cell phones tamper proof: This would solve the problem only if cell phone programming is changed to disallow older cell phones from working on the network. The manufacturers need only build in an anti tamper switch that would fry the cell phone ic's similar to circuits placed on expensive radios that are installed in cars.

3. Force the Carriers to scramble their synchronization timing for the cell phone clocks.  A programming update would be required for the cell phone itself to always synchronize with the signal provided by the carrier. Some cell phones lock this function out while others allow for the update all of the time. Those people that travel see this happen since when they land and turn on the cell phone, the clock is updated to local time. The Carrier can then scramble the clock, especially in tunnels, at airports or government buildings. This would reduce the threat of the cell phone being used as a timer.

4. Force the carriers to id anyone purchasing a pre-paid cell phone.

5.  Prevent roaming ability from countries that harbor terrorists, and in cases of alerts prevent roaming altogether.  This would prevent cell phone bombs from going off by the placement of phone calls from outside of a given area.

6. Change the composition of  Batteries:  Current Lithium Ion Cobalt batteries can be dangerous. However another type, Lithium Ion Phosphate is not. The difference is that the latter is manufactured in the United States by Valance Technology out of Texas.  Lithium Ion Phosphate is safe, doesn't explode and is as effective if not better than what is in use today. 

7.  Legalize Jamming by the Bomb Squad and First Responders.  There is no reason whatsoever that local bomb disposal units and first responders do not have the right to use jamming equipment to protect themselves or the public against remote controlled bombs. Jamming of cell phones occurs in a small area and only the signal between the tower and the cell phone is jammed.  if there is a suspicious bag with an antenna sticking out of it, the jammer needs to be deployed without waiting for the Federal Government.

8. No Cell Phone signal in tunnels : The argument that someone might need to make a phone call in a tunnel in an emergency does not work. There are regular land line type of emergency phones every 100 feet in tunnels. They are more reliable. However the chance of a bomb going off attached to a gasoline truck is more likely than someone who cannot find the emergency phone station.

9. Plan of Action: We need the Department of Homeland Security to develop and deploy a plan that involved the carriers and local police departments in order to turn towers off, or scramble timing synchronizations in times of known threats. 

It is important that all of the points above are considered and hopefully implemented.  There are several lobby groups that I know of that oppose jamming and anything that may affect the profits of the cell phone industry.  As well, the FCC has opposed the use of jamming equipment by the local police departments as they say that the local police may abuse the jammers.  The department of Homeland Security refuses to make good on their mandate given to them by Congress via the Homeland Security Act, which gives them the power to provide "Whatever technology is needed to prevent or mitigate terrorist activities ", which of course must have included bombs. 

The threat of using the cell phone as a weapon against us is real. It is the number one triggering device used by terrorists around the world, and as such will inevitably be used here in the United States.  We need to be prepared for such attacks by planning and making sure that our local and state law enforcement have the necessary weapons to combat the threat. We can ill afford to wait until people in this country are killed from a terrorist attack that uses a cell phone remote controlled bomb before we take action.  

© 2006 CellAntenna Corporation. All rights reserved. This material may not be reproduced, displayed, modified or distributed without the express prior written permission of the copyright holder. For permission, contact  Howard Melamed CEO of CellAntenna Corporation at 12453 NW 44th Street, Coral Springs Florida 33065, or telephone at 954-340-7053 or by sending an email to

 
 
 
 

Home  |  Legal Notices  |  Privacy Policy  |  Customer Service  |  International & Custom Orders  | Affiliate Program  |  Contact Us | United Kingdom

Solution Graphics

Join the CellAntenna Corporation mailing list
Email:

This website and its contents are Copyright 2001-2008, CellAntenna Corporation. All rights reserved.