After the terrorist attacks of September 11, 2001, FISA’s powers were expanded with the USA PATRIOT Act, increasing surveillance capabilities, as well as the Terror Surveillance Program and the controversial Section 702. The expansion of FISA grew out of a desire to have a greater ability to protect the homeland in the wake of disastrous intelligence failings leading up to September 11. But the expansion of FISA led to the widespread collection of the private information of U.S. citizens without search warrants.
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