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### Outline of the case
In the fast-paced modern life, we often need to use various means of transportation, such as airplanes and high-speed rail, to complete our long-distance travel. And at the beginning of these trips, security checks are always unavoidable. You may have noticed that whenever we try to carry everyday items like toothpaste through security, there are always some troubles. So, what is it that makes these seemingly innocuous items a thorn in the side of security?
### Article event body
Toothpaste, a little thing we use every morning and evening, has become a headache at the security check Its main component does not contain any dangerous substances, but the problem lies in its form – liquid or semi-solid. In the eyes of security equipment, this form of item is often easily associated with potential safety hazards.
The working mechanism of security inspection equipment is mainly to detect whether the items contain metals, liquids and other substances that may pose a security threat. And the toothpaste happened to touch this sensitive point. It contains moisture that, under certain conditions, may trigger an alarm on the security screening equipment. Imagine that under high pressure or high temperatures, the packaging of toothpaste may break, resulting in leakage of contents, and while this is unlikely to happen, security authorities have to take strict measures to ensure absolute safety.
### Event impact and summary
The stringency of security is not for nothing, but for the safety of every passenger and crew. ️ As the global security situation changes, security measures are constantly being upgraded to deal with various threats that may arise. This means that we need to be more mindful of what we bring when traveling, especially liquids and semi-solid items.
There are a few things we can do to address this challenge. For example, putting liquids such as toothpaste in your checked baggage instead of carrying them with you. This allows us to comply with the regulations and ensure that our travel is not blocked by security issues. At the same time, it is our obligation as a responsible traveller to understand and comply with security regulations.
### Conclusion
The reason why toothpaste can't go through security is closely related to safety. As travelers, we should understand and respect these regulations, but we can also plan wisely to ensure that our travel experience is not compromised. Let's work together to create a safer and more convenient environment for travel. Remember, behind every smooth trip, there are countless people who are silently guarding our safety.