Yo-Yo Ma plays the cello as, front row from left, Second gentleman Doug Emhoff, Deputy Secretary of State Kurt Campbell, Sen. Chris Van Hollen D-Md., Katherine Wilkins, Assistant Secretary of State Julieta Valls Noyes and Suzy George, look on, at the National Cathedral, Thursday, April 25, 2024, in Washington. A memorial at the National Cathedral in Washington is honoring seven World Central Kitchen aid workers killed by Israeli strikes in Gaza this month. (AP Photo/Jose Luis Magana)