Jazmin Li
Airport body scanners have been a topic of concern for many travellers, with some worrying about the level of detail these scanners can detect. While older machines, which used backscatter technology, did produce nude images of passengers, these machines were removed from all airports in 2013 due to privacy and health concerns. Today, most airports use millimetre wave scanners that generate generic, cartoon-like images of the human body, with privacy software installed to protect passenger privacy. These machines are designed to detect a wide range of metallic and non-metallic threats and can even be triggered by unusual readings, such as sweat, certain fabrics, or medical devices. While the level of detail in scans has decreased, the use of body scanners remains a controversial topic, with some travellers opting to avoid air travel altogether due to concerns over privacy and invasive searches.
| Characteristics | Values |
|---|---|
| Airport body scanners see under clothes | Yes |
| Airport body scanners see you naked | No |
| Airport body scanners produce generic images | Yes |
| Airport body scanners detect items in pockets | Yes |
| Airport body scanners detect items inside the body | No |
| Airport body scanners detect benign undivested items | Yes |
| Airport body scanners detect threatening items | Yes |
| Airport body scanners detect non-metal items | Yes |
| Airport body scanners detect metal items | Yes |
| Airport body scanners detect medical devices | Yes |
| Airport body scanners detect prosthetics | Yes |
| Airport body scanners detect binders | Yes |
| Airport body scanners detect hair | Yes |
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What You'll Learn
- Airport body scanners use Advanced Imaging Technology (AIT) to detect metallic and non-metallic threats
- Scanners produce generic images of a body, not the passenger's unique image
- Scanners cannot detect anything inside the body, such as tampons
- Scanners use electromagnetic waves to detect threatening items
- Scanners alert TSA agents if the body doesn't match male and female presets
Airport body scanners use Advanced Imaging Technology (AIT) to detect metallic and non-metallic threats
The millimetre wave machines use non-ionizing radiofrequency waves to detect threats. The machine bounces the waves off the body and back to the machine. The energy that bounces back from the scanned surface will show the objects that are present, or it can generate an image that TSA agents can use to show items that may need more investigation.
The introduction of the first backscatter x-ray body screener in the 1990s sparked controversy, with passengers seeking greater privacy. Since then, body scanning machines have evolved significantly. Today, the machines produce more generic scans, creating ""doll-like" scans to replicate a generic human body. With millimetre wave machines that have privacy software installed, TSOs will only see a green "clear" or red "stop and check" signal.
The machines are also safe for pregnant women, children, and those with medical implants such as pacemakers. They emit far less energy than a cell phone.
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Scanners produce generic images of a body, not the passenger's unique image
The use of body scanners at airports has raised concerns about passenger privacy. While older machines produced very detailed images of passengers' bodies, the machines today produce generic images of a body, not the passenger's unique image.
Airport body scanners use Advanced Imaging Technology (AIT) for full-body scans at checkpoints. They use millimeter wave imaging technology to detect a wide range of metallic and non-metallic threats in a matter of seconds. The machines send millimeter waves toward a passenger's insides, which reflect off their skin and bounce back an image that is interpreted by the machine.
While the machines do scan down to the skin, they are designed to protect passenger privacy. Instead of displaying a passenger's unique image, the scanners generate a generic, cartoon-like "gingerbread man" or "doll-like" outline of a human body. If threatening items are detected, the machine pinpoints them on this outline, indicating a "red 'stop and check' signal." If no threats are detected, the screen simply says "OK," and the passenger is cleared.
The use of generic images ensures that TSA agents do not see passengers naked during the scanning process. This change was implemented after older machines, known as backscatter scanners, were found to produce highly detailed nude images of passengers. Due to privacy and health concerns, these machines were removed from all airports in 2013.
While the current machines do not display unique images of passengers, it is important to note that they may still flag individuals for "enhanced screening" if their bodies do not match the pre-set "male" and "female" standards. This has raised concerns about the bias of the algorithms and the potential for invasive searches.
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Scanners cannot detect anything inside the body, such as tampons
Airport body scanners use Advanced Imaging Technology (AIT) for full-body scans at airport checkpoints. While these scanners can detect a wide range of metallic and non-metallic objects, they cannot detect anything inside the body, including tampons.
The technology used in these scanners has evolved since 2013, when the Transportation Security Administration (TSA) used machines that produced very detailed images of passengers' bodies. These machines, known as backscatter scanners, used X-rays to create essentially nude photographs of passengers. However, due to privacy and health concerns, these machines were removed from all airports in 2013.
Today, most airports in the United States use millimeter-wave scanners, which are safer and less invasive. These machines produce generic, cartoon-like outlines of the human body and are unable to detect items inside the body. Instead, they are designed to identify potential threats, such as weapons, chemicals, or liquids, and alert the TSA agent if something is detected.
It is important to note that while the machines do not reveal intimate details, they may flag certain characteristics for "enhanced screening." For example, transgender individuals have reported that their genitals or prosthetics have been flagged, leading to invasive searches. Additionally, Black people's hair, such as dreadlocks or afros, is often flagged by the machines as well.
In conclusion, while airport scanners can see under clothing to detect potential threats, they cannot detect anything inside the body, including tampons. The technology has evolved to prioritize privacy while still ensuring the safety of passengers.
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Scanners use electromagnetic waves to detect threatening items
Airport body scanners use advanced imaging technology (AIT) to detect threatening items. These machines use a non-invasive millimetre wave scanner, a form of electromagnetic radiation, to detect a wide range of metallic and non-metallic threats. The electromagnetic waves are directed at the passenger and reflect off their skin and any concealed items, bouncing back to create an image that is interpreted by the machine.
The millimetre waves used are a subset of the microwave radio frequency spectrum and are a type of non-ionizing electromagnetic radiation. This means that, unlike X-rays, they do not have the potential to harm living tissue. The waves used are of a lower energy than ultraviolet waves, which are the nearest radiotoxic waves in the electromagnetic spectrum.
The scanners create a generic image of a person, with areas of suspicion highlighted by boxes. If no suspicious items are detected, a green screen appears, indicating the passenger is cleared. This generic image is created using Automatic Threat Recognition (ATR) software, which means that the operator only sees a mannequin outline, not the passenger's actual image.
The use of millimetre wave scanners for full-body scans has been questioned, with some studies suggesting that the scanners are poor at detecting threatening items. However, the technology is constantly evolving, and millimetre wave scanners are now used in airports and mass-transit systems in several countries, including the US, Canada, the Netherlands, Italy, Australia, and the UK.
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Scanners alert TSA agents if the body doesn't match male and female presets
Airport body scanners use Advanced Imaging Technology (AIT) to scan the contours of the human body and detect any dangerous items that may be hidden under clothing. The technology behind this is called millimeter wave imaging, which involves sending millimeter waves through a passenger's insides. These waves reflect off the skin and bounce back an image, which is then interpreted by the machine.
While older machines did not have privacy protections, and officers could see naked images of passengers, these machines were removed from all airports in 2013. Now, the machines are supposed to generate generic images of a body instead of the passenger's unique image. These are "doll-like" scans that replicate a generic human body, and are accompanied by a green "clear" or red "stop and check" signal.
However, the current "Advanced Imaging Technology" scanners require the operator to select a "male" or "female" scanning setting, which has resulted in additional and invasive searches for transgender travellers. The TSA has acknowledged this issue and stated that they will be replacing these scanners with technology that will not be based on gender. The new scanning technology will "advance civil rights and improve the customer experience of travellers who previously have been required to undergo additional screening due to alarms in sensitive areas".
In the meantime, transgender travellers can opt for a pat-down instead of the body scanner. This must be performed by an officer of the same gender as the traveller, based on their gender presentation. It is also recommended that transgender travellers fill out a "Notification Card" to disclose any personal information that may be relevant during the screening process.
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Frequently asked questions
No, not in any image that will be seen by a human. The scanner uses an Automatic Threat Recognition and Detection functionality to digitally look for possible threats. If any are detected, the machine will pinpoint them on a generic, cartoon-like outline of a human body that appears onscreen.
Airport body scanners use a technology called Advanced Imaging Technology (AIT) for full-body scans. It is a millimetre-wave scanner that detects a wide range of metallic and non-metallic threats in a matter of seconds.
You will be asked to stand in the machine and assume a particular position. There might also be a request to rotate to a second position. The scan will take just a few minutes.
If threatening items (weapons, chemicals, liquids, etc.) are detected on an individual, the machine will pinpoint them on a generic, cartoon-like outline of a human body that appears onscreen.
If no threats are detected, the screen will simply say "OK" and the flyer will be waved through.
