This bill amends title 36, United States Code, to mandate the display of the Hostage and Wrongful Detainee flag on specific historical dates. These dates include November 4 and January 20, commemorating the Iranian hostage crisis, August 19 for James Foley, and October 7, marking the Hamas attack where hostages were taken. The legislation requires the flag to be flown at various federal locations, including offices of the Attorney General, Secretaries of Education, Transportation, and Commerce, and on any day the U.S. Flag is displayed at certain sites. Specifically, it must be displayed at Department of State offices, U.S. embassies and consulates, Department of Justice offices, and all passport application locations in the United States, visible to individuals. Additionally, the bill includes a sense of Congress encouraging local and state governments and airports to fly the flag on these specified days, especially to honor a hostage returning or recognized as having passed away in captivity.