Final answer:
Congress responded to George W. Bush's vow by authorizing the president to use all means necessary, leading to the passage of the Patriot Act.
Step-by-step explanation:
Congress responded to George W. Bush's vow to "hunt down" those responsible for the 9/11 attacks by issuing a joint resolution authorizing the president to use all means necessary against the individuals, organizations, or nations involved in the attacks.
This resolution echoed Bush's declaration of war on terrorism and set the stage for the subsequent passage of the Patriot Act. The Patriot Act expanded the powers of the federal government, allowing for covert surveillance of individuals suspected of having connections to terrorist activities.