The Gaza Humanitarian Foundation, a U.S. and Israeli-backed humanitarian aid initiative, has been delivering aid into Gaza since May. But since then, the U.N. says hundreds of Palestinians have been killed outside of GHF aid sites. Nick Schifrin spoke with former security contractor Anthony Aguilar about what he saw there and why he believes the execution of the GHF mission has failed. PBS News is supported by - https://www.pbs.org/newshour/about/funders