WASHINGTON, DC - MAY 23: Former Director of the U.S. Central Intelligence Agency (CIA) John Brennan testifies before the House Permanent Select Committee on Intelligence on Capitol Hill, May 23, 2017 in Washington, DC. (Drew Angerer/Getty Images)
    WASHINGTON, DC - MAY 23: Former Director of the U.S. Central Intelligence Agency (CIA) John Brennan testifies before the House Permanent Select Committee on Intelligence on Capitol Hill, May 23, 2017 in Washington, DC. (Drew Angerer/Getty Images)

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      WASHINGTON, DC - MAY 23: Former Director of the U.S. Central Intelligence Agency (CIA) John Brennan testifies before the House Permanent Select Committee on Intelligence on Capitol Hill, May 23, 2017 in Washington, DC. (Drew Angerer/Getty Images)

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    Former CIA director hosts discussion

    This event marks Brennan's first public and on-the-record discussion since the 2017 Aspen Security Forum in July