U.S. Ambassador to the United Nations Mike Waltz accused UNRWA of serving as a "virtual arm of Hamas", alleging the agency helped radicalize generations of Palestinians in Gaza during a congressional hearing on U.N. reform. The remarks come amid continued scrutiny of UNRWA and wider debates over its role in the region. Watch the full exchange as Waltz lays out his case for U.N. reform, UNRWA accountability, and U.S. policy on Gaza, Hamas, and the Middle East.