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A major alteration is underway for the emblem of the Polish Air Force: a cutting-edge low-visibility checkerboard design aimed at allowing its F-35 aircraft to remain undetectable.

The concept of stealth technology, or camouflage for military aircraft, first emerged during the Cold War era across the Atlantic.

"Tactical camouflage in the United States emerged in the 1980s, starting with the renowned F-117 Nighthawk," Kacper Bakuła of the Armament Agency stated to Euronews.

Implementing a consistent color scheme for markings on aircraft was initially intended to complicate enemy recognition from the start. This approach was informed by the lessons of World War II and the characteristic aerial combat of that era, during which identifying enemy aircraft was relatively straightforward.

New legislative proposals submitted to Poland's parliament aim to utilize the existing Polish camouflage pattern in shades of grey for integration with the surface of fighter jets, under specific circumstances where security requirements or operational conditions justify such measures.

"In one sense, this is a requirement laid down by the manufacturer; on the other hand, it is a necessity of the modern battlefield," says Cezary Tomczyk, secretary of state in the Ministry of National Defence.

The camouflage pattern on fifth-generation fighter jets serves a dual purpose: it is designed to limit the visibility of the aircraft, particularly to hostile radar systems affiliated with non-NATO forces.

"A small distinguishing feature on the aircraft's hull can lead to visual detection and identification of its nationality," states Brigadier General Pilot Wojciech Pikuła, deputy commander of the Air Force.

It is essential that the markings on the aircraft be in camouflage colors matching those of the F-35, in order to effectively conceal its visibility.

The government's new plan was submitted to parliament on Wednesday.

A travel specialist has disclosed that certain harmless actions can lengthen a traveler's time at a security screening.

Jeff Price, an airport security coordinator-trainer, explained the behaviors, actions, and physical characteristics that may indicate a traveler has a greater likelihood of being selected for further scrutiny.

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The head of Leading Edge Strategies, the airport management training company, observed that several behaviors may indicate potential security concerns to transportation security officers (TSOs).

Cybersecurity experts typically search for a "cluster" of suspicious activities labelled as potential threats, rather than pinpointing a single specific point of concern.

According to Price, the leading causes of travel attire-based embarrassment comprise yawning and wearing outfits that clash with a destination's climate.

Frequent yawning has caught the attention of TSA agents, potentially due to its underlying causes.

"Excessive yawning could signal a need for extra oxygen. Individuals under stress often have a desire for more oxygen supply," said Price.

Individuals who are not stressed may also experience excessive yawning due to insufficient sleep, monotony, or other medical conditions.

Lack of sleep can also be to blame for the "thousand-yard stare" or failure to maintain eye contact.

Price pointed out that the stare could potentially make everyone feel uneasy, and this is a reason why identifying 'behavior clusters' is crucial for TSOs.

One of the things we do during training is to send people out to observe travelers at airports, simply to gather a baseline of normal behavior.

'At that point, we should proceed with identifying what stands out - and by extension, you can begin looking for patterns of what is divergent.'

Actions that will gain agents' attention include excessive action-taking and agitated behavior.

'Displaying aggressive or threatening behavior will undoubtedly draw the attention of security personnel,' the official warned.

'It might be that you're dissatisfied with everything that's happening. You're having a really disappointing day, but, as an unfortunate consequence, it's also drawing a lot of attention your way.'

Another red flag is clothing - mainly for passengers choosing to wear loose-fitting clothing, even if flying to or from a destination with warm weather.

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Clothing items such as over-sized hoodies, large sweaters, and ponchos are regarded as being large and bulky.

These outfits may also prompt officers to request pat-downs: garments like windbreakers, low-slung pants, and items featuring thick fur or excessive laces.

Wearing a substantial amount of cologne or perfume with your attire can lead to significant attention from security personnel at the Transportation Security Administration.

In some situations, authorities may suspect that a familiar-smelling substance is being used to hide another potentially hazardous scent, according to Fox News Digital.

Travelers who accidentally behave in one or more of these manners can still proceed through security screening.

Price said that passengers who remember why they're at the airport can help ensure a suitable experience.

"The reason you're here is to catch your flight on schedule and reach your destination, so focus on activities that will help you achieve this goal," Price said, suggesting that passengers should also cooperate with security and airline staff.

He added that security measures are a necessary nuisance, as they were designed to cause a bit of inconvenience.

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