What information can US customs see?

The background investigation will include credit and criminal history checks, records checks to verify citizenship of family members, verification of date of birth, education, employment history, and military history.



In 2026, U.S. Customs and Border Protection (CBP) has access to an immense amount of data via the Automated Targeting System (ATS). When you scan your passport, officers see your full travel history, visa status, criminal record (if any), and your "Passenger Name Record" (PNR), which includes your seat number, who you booked with, and your payment method. More significantly, under Directive 3340-049B, CBP has the authority to conduct "Basic" or "Advanced" searches of your electronic devices. They can see your photos, messages, social media profiles, and call logs if they have "reasonable suspicion." They also utilize biometric facial recognition to cross-reference your identity against global watchlists. While they cannot intentionally access "cloud-only" data without a warrant, any information physically stored on your phone or laptop is essentially an open book during a border inspection.

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As for the border patrol, the agency believes searches of social media and travelers' devices are well within its rights. The reason lies with the so-called “border exemption”—a legal rule that puts border searches outside the Fourth Amendment, which requires a warrant for search and seizures.

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U.S. Customs and Border Protection (CBP) is taking your photograph in order to verify that each person presenting a travel document for entry into the U.S. is the true bearer of that document.

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Having a flagged passport typically refers to a situation where a person's passport is marked or identified by authorities for special attention or scrutiny. This could be due to a variety of reasons, including legal, security, or administrative concerns.

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Pursuant to this authority, customs officers may generally stop and search the property of any traveler entering the United States at random, or even based largely on ethnic profiles.

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There are signs that will indicate you have been flagged for additional screenings: You were not able to print a boarding pass from an airline ticketing kiosk or from the internet. You were denied or delayed boarding. A ticket agent “called someone” before handing you a boarding pass.

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“When travelers come off of an international flight, they are funneled through a secure pathway to the CBP inspection area. The airline transmits the biographic data to us. We verify that information when we read a traveler's passport and we make sure it's accurate.

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Double-check for prohibited items In U.S. arrival areas, amnesty bins (or even garbage cans) are less common, however, which could potentially lead to more people being fined. A good rule of thumb is to search your bags one last time before deplaning to make sure you didn't, for example, stash an apple from the flight.

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5. When do you go through customs on international flights? Usually, you go through customs when you exit the airport at your final destination. However, if you have a layover in a different city in your destination country, you may need to go through customs before your connecting flight.

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You must declare all items you purchased and are carrying with you upon return to the United States, including gifts for other people as well as items you bought for yourself. This includes duty-free items purchased in foreign countries, as well as any merchandise you intend to sell or use in your business.

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