Monday, February 16, 2015

RFID Bomb Detection?

GE’s Global Research division has revealed that it has been working on producing an RFID tag that will be able to detect bombs, or at least bomb components. The tag is the size of a postage stamp as claimed by the headline from the article on Wired that I read, although the exact size is not mentioned in the article this is still a sensor roughly one square inch in size. In addition to its small size the sensor will only cost roughly a nickel, meaning that there could easily be many of these sensors included in large and small form factor devices in the near future. The current research has been focused on detecting explosives and oxidizers, but GE has said that they may be able to develop similar tags that could detect biological matter.

The Wired article states that “the new RFID tag could dramatically drive down the cost of scanning for dangerous materials in places like cargo ports and airports,” in addition to that application I believe it could also allow for a much wider coverage of dangerous material scanning. Why not add bomb scanners to movie theaters, schools, restaurants, stores and any other public place we can think of, we could create networks of bomb scanners. If done correctly I believe these new RFID tags could cut down bombing incidents drastically. Everyone’s mail could easily be scanned for explosives, not just that of potential targets. Bomb scanners could eventually become as prevalent as smoke detectors, we could literally always be watching for a bomb.

That’s the problem though, “always watching,” will constantly scanning for bombs pose as an invasion of privacy? Even if everyone is fine with the idea of constantly be scanned for bombs, what will happen if we do detect one in a public place? How many more potential incidents will bomb squads need to respond to? False readings from these sensors could possibly result in many thousands of dollars in bomb squad responses and searches. The costs in bomb squad searches for either real or false bomb detections could far outweigh the minimal costs on installing these sensors in the first place. So regardless of privacy, what it really comes down to is how much is safety worth to public places like malls and schools, and how accurate is this new sensor going to be? GE says that it has developed “sensing materials that are quite sensitive for this type of detection,” but does that mean the slightest hint of a possible bomb substance will trigger it? If the sensor is fairly accurate than it can probably be said that the safety they will provide will outweigh the costs of calling in the bomb squads, but where do we call the line, when is the sensor not accurate enough to balance out the cost of a bomb squad?


Overall, this is a great technological advancement and it will definitely reduce costs where bomb scanners are already in place, but the low cost provides the option to add scanners to other public places that may benefit from the technology. Once we start putting these small bomb sensors in other public places the issue of when it becomes worth it becomes a very real idea and we find ourselves morally torn between the costs of calling in bomb squads and the safety of other human beings, and much of this ethical decision depends on how accurate the RFID tags will be. We certainly will not be able to put them in schools if they trigger too easily because the bomb squads might end up being in the schools more than the students. It is going to be interesting to see where this new technology will take us. 

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