Which law passed after 9/11 expanded federal authorities to obtain search warrants more easily?

• A. USA PATRIOT Act
• B. Homeland Security Act
• C. USA Freedom Act
• D. Defense Authorization Act

Answer: (A)

After 9/11, Congress broadened the tools investigators could use to gather information and act quickly on potential threats. The USA PATRIOT Act expanded the framework for obtaining warrants and accessing data, especially in the realm of national security. It broadened what counts as relevant information, made it easier to obtain certain types of warrants and records, and allowed closer information sharing among agencies. That combination effectively speeds up and enlarges the reach of surveillance and search authorities, which is why this law is the one that fits the description in the question. The Homeland Security Act mainly created the Department of Homeland Security, the USA Freedom Act later reined in some surveillance powers, and the Defense Authorization Act concerns defense funding and policy rather than expanding warrant powers.