 NPR's Claudia Grisales on Capitol Hill. Thank you, Claudia. Thank you. Israeli airstrikes have hit at least three UN school sheltering displaced people in Gaza in the past six days. A fourth suffered damage after an Israeli airstrike nearby. NPR's Kat Lonsdorff reports from Tel Aviv with NPR's Anas Baba in Gaza. And a warning, this report contains graphic details of the scene of an attack.