06/29/2026
Government Surveillance in America: How Much Has It Expanded in the Last 20 Years? A Legal Analysis of FISA, Flock Cameras, Palantir, AI, and Digital Privacy
By Mark Linton | Michigan Appeals Attorney
Over the past two decades, the United States has experienced one of the most significant expansions in government surveillance capabilities in its history. While many Americans associate government surveillance with the Patriot Act enacted after the September 11 attacks, the reality is far more complex. Today's surveillance landscape is driven not only by federal intelligence laws but also by artificial intelligence, commercial data brokers, automated license plate readers, facial recognition technology, cloud computing, and sophisticated data analytics platforms capable of connecting billions of data points in seconds.
The result is that the federal government, state governments, and local law enforcement agencies now possess investigative capabilities that would have been unimaginable just twenty years ago.
Importantly, this does not necessarily mean that government agencies have unlimited legal authority to monitor citizens. Courts, Congress, and constitutional protections continue to impose limits on many forms of surveillance. However, from a technological perspective, the government's ability to collect, analyze, and correlate information has increased dramatically.
This article examines how government surveillance has changed since approximately 2006, explains the legal framework governing many of these technologies, and explores the constitutional implications under the Fourth Amendment.
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Government Surveillance in 2006 vs. 2026
Twenty years ago, most criminal investigations relied upon relatively traditional investigative techniques.
Law enforcement typically obtained:
• Search warrants
• Telephone records
• Bank records
• Witness interviews
• Physical surveillance
• Limited video footage
• Basic computer forensic evidence
Today, investigators often have access to an enormous digital footprint created by everyday life.
Modern investigations may include:
• Smartphone location history
• GPS tracking
• Wi-Fi location data
• Bluetooth proximity information
• Automated license plate reader (ALPR) databases
• Cloud-stored communications
• Social media activity
• Commercial consumer data
• Artificial intelligence-assisted analytics
• Facial recognition systems
• Public and private surveillance camera networks
The amount of digital information generated by the average American has increased exponentially, creating investigative opportunities that did not exist in the mid-2000s.
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The Evolution of FISA Surveillance
The Foreign Intelligence Surveillance Act (FISA) has existed since 1978, but its scope and practical impact changed dramatically after the September 11, 2001 terrorist attacks.
Following 9/11, Congress enacted several major surveillance laws, including the USA PATRIOT Act and later the FISA Amendments Act of 2008, which created Section 702. Section 702 authorizes the collection of foreign intelligence information by targeting non-U.S. persons reasonably believed to be located outside the United States without individual warrants. Communications involving Americans may be incidentally collected, and agencies may conduct certain queries subject to statutory and oversight rules. The authority has been repeatedly reauthorized with modifications. These authorities remain the subject of ongoing legal, political, and constitutional debate.
Although Section 702 is aimed at foreign intelligence collection, its operation has raised recurring Fourth Amendment questions concerning incidental collection, minimization procedures, and oversight.
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Smartphones Changed Everything
Perhaps no technology has transformed surveillance more than the modern smartphone.
In 2006, many mobile phones lacked GPS functionality or generated relatively little historical location information.
Today's smartphones continuously generate data, including:
• GPS coordinates
• Cell tower connections
• Wi-Fi location information
• Bluetooth device proximity
• Application usage
• Advertising identifiers
• Internet browsing activity
• Cloud synchronization logs
Everyday activities such as driving, shopping, traveling, exercising, or visiting friends can generate digital records.
The Supreme Court recognized the extraordinary privacy implications of location data in Carpenter v. United States, 585 U.S. ___ (2018), holding that the government generally must obtain a warrant before acquiring historical cell-site location information from wireless carriers.
Although Carpenter imposed important constitutional limits, the volume of location information generated today remains vastly greater than it was twenty years ago.
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Flock Safety Cameras and Automated License Plate Readers
Twenty years ago, law enforcement officers generally relied upon patrol observations or isolated traffic cameras to identify vehicles.
Today, thousands of police agencies use automated license plate reader systems such as those offered by Flock Safety.
These systems may record:
• License plate numbers
• Vehicle make
• Vehicle model
• Vehicle color
• Distinguishing characteristics
• Date and time
• Geographic location
• Direction of travel
Many participating agencies share information with neighboring jurisdictions, creating large searchable networks of vehicle sightings that can assist in criminal investigations. Supporters emphasize their value in locating stolen vehicles, abducted children, and suspects, while critics raise concerns about retention policies, oversight, and the potential to reconstruct the movements of people who are not suspected of any crime.
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Palantir and Modern Government Data Analytics
One of the most significant developments in modern law enforcement is not necessarily the collection of new information, but the ability to connect existing information.
Data analytics platforms, including those developed by Palantir Technologies, help authorized users integrate information from multiple lawful sources and identify relationships among people, organizations, locations, and events. The software itself does not expand the government's legal authority to collect information, but it can make analysis of authorized data far more efficient.
Historically, investigators often searched databases individually.
Modern analytical software can rapidly compare information across numerous datasets, significantly reducing the time required to identify investigative leads.
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Artificial Intelligence Has Revolutionized Investigations
Artificial intelligence has fundamentally changed how investigators analyze information.
Twenty years ago, investigators frequently reviewed evidence manually.
Today, AI-assisted systems can help organize and analyze:
• Millions of documents
• Financial transactions
• Telephone records
• Surveillance video
• License plate detections
• Digital communications
• Public records
Artificial intelligence can dramatically reduce the time required to identify patterns or connections. Human investigators remain responsible for evaluating evidence and complying with legal standards, but AI has become an increasingly important investigative tool.
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Commercial Data Brokers and Government Access
One of the fastest-growing areas of modern surveillance involves commercial data brokers.
Private companies routinely collect information concerning:
• Consumer purchases
• Website activity
• Mobile application usage
• Advertising identifiers
• Approximate location information
• Marketing profiles
Government agencies have, in some instances, purchased commercially available datasets rather than obtaining similar information through compulsory legal process. This practice has generated significant constitutional and policy debate, and some agencies have adopted additional restrictions in response.
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Facial Recognition Technology
Facial recognition technology has advanced dramatically over the past twenty years.
Earlier systems often produced inconsistent or unreliable results.
Modern artificial intelligence systems are capable of comparing images against extremely large databases in seconds.
Supporters argue that facial recognition assists in identifying dangerous suspects and locating missing persons.
Critics question:
• Accuracy
• Potential bias
• Privacy implications
• Oversight
• Long-term retention of biometric information
Courts continue to confront constitutional questions regarding the use of facial recognition evidence.
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Cloud Computing Has Expanded Digital Evidence
Twenty years ago, personal documents were generally stored on desktop computers, CDs, or external hard drives.
Today, enormous amounts of personal information are stored remotely through cloud service providers, including:
• Email
• Photographs
• Calendars
• Documents
• Text message backups
• Device backups
Cloud storage creates additional sources of digital evidence that may be available through lawful legal process, depending on the type of information sought and the governing statutes.
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Financial Surveillance Has Become Increasingly Digital
Modern financial activity generates significantly more electronic records than it did twenty years ago.
Electronic banking, digital payment platforms, online commerce, and financial reporting systems create detailed transaction histories.
Financial institutions continue to file reports required by federal law, such as Suspicious Activity Reports (SARs) and Currency Transaction Reports (CTRs). The transition to electronic commerce has expanded the amount of financial information that exists in digital form, although government access to those records remains governed by applicable legal standards.
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The Constitutional Balance Between Security and Privacy
The central constitutional issue surrounding modern surveillance remains the Fourth Amendment.
The Fourth Amendment protects individuals against unreasonable searches and seizures.
As technology has advanced, courts have increasingly been required to determine how constitutional protections apply to:
• Cell phone searches
• GPS monitoring
• Historical location information
• Digital communications
• Electronic devices
• Cloud-based data
• Emerging surveillance technologies
Supreme Court decisions such as Riley v. California and Carpenter v. United States recognize that digital technology can reveal far more about an individual's private life than traditional physical searches, requiring courts to reassess how constitutional protections apply in the digital age.
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How Much Has Government Surveillance Increased?
There is no universally accepted metric that measures government surveillance in percentage terms.
However, most legal scholars, privacy advocates, and many current and former government officials agree on one central point:
The government's technological ability to collect, analyze, store, and correlate information about individuals has expanded dramatically over the past twenty years.
That increase has been driven primarily by:
• Smartphones
• Artificial intelligence
• Commercial data brokers
• Automated license plate readers
• Facial recognition
• Cloud computing
• Big data analytics
• Expanding digital records
At the same time, courts have imposed meaningful constitutional limits in several important areas, and Congress has periodically revised surveillance statutes in response to public concerns and oversight findings. The ongoing legal challenge is balancing national security and effective law enforcement with the privacy protections guaranteed by the Constitution.
Frequently Asked Questions (FAQ)
Is government surveillance today greater than it was 20 years ago?
From a technological standpoint, yes. The amount of digital information available and the tools used to analyze it have expanded enormously. Whether a government agency may lawfully access that information depends on the applicable statutes, constitutional protections, and judicial oversight.
What is FISA?
The Foreign Intelligence Surveillance Act (FISA) establishes procedures governing certain foreign intelligence surveillance activities. Section 702, in particular, authorizes the targeting of non-U.S. persons located abroad for foreign intelligence purposes, subject to statutory safeguards and oversight.
What are Flock cameras?
Flock Safety cameras are automated license plate readers used by many law enforcement agencies to identify vehicles and investigate crimes. They record vehicle characteristics, license plates, time, and location, and participating agencies may share data through regional networks.
What is Palantir?
Palantir develops data integration and analytics software used by government agencies and private organizations to analyze information from multiple authorized sources. The software helps identify patterns and relationships but does not itself grant legal authority to collect data.
Does the Fourth Amendment still protect digital privacy?
Yes. The Fourth Amendment continues to apply to digital information. Supreme Court decisions such as Riley v. California and Carpenter v. United States have recognized that modern digital technologies require robust constitutional analysis because they can reveal extensive details about an individual's private life.
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Need Legal Representation in a Michigan Criminal Appeal or Constitutional Case?
If your criminal case involves digital evidence, cell phone searches, GPS tracking, electronic surveillance, FISA-related issues, search warrants, or Fourth Amendment violations, experienced appellate representation can make a critical difference. Constitutional challenges often require a detailed understanding of evolving technology, statutory authority, and appellate precedent.
Mark Linton Michigan Appeals Attorney represents clients throughout Michigan in criminal appeals, post-conviction proceedings, and constitutional litigation involving search-and-seizure issues, digital evidence, and complex questions of criminal procedure.
Contact us today to discuss your case and learn whether your constitutional rights were violated in a criminal case.
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