Ever since the Oct. 7 Hamas terrorist attack on Israelis, followed by Israel’s retaliatory military campaign in Gaza, the Biden administration has said humanitarian assistance in Gaza is a key pillar of its approach to the crisis. But that part of the U.S. strategy now seems to be failing, as Israel’s indiscriminate attacks and barriers to aid delivery have consigned surviving Palestinians to the prospect of a man-made famine. The United States can and should do more to ensure Gazans don’t starve.