I was surprised to see this in the WashPost.

About 10 miles from a U.S. military outpost in southern Syria, some 30,000 civilians are in crisis — with almost no food, water or medicine — and, for complicated reasons, the U.S. government refuses to feed them. These innocent people are living under the protection of the United States, fearing the Bashar al-Assad regime, Iranian militias and the Islamic State. But the U.S. government, which bears primary responsibility for their fate because of its control over the area, is standing by and watching them needlessly starve to death.
...“Our kids are dying in front of us and we are unable to do anything about it,” the female camp resident continued. “We used to hear about hunger but now we understand it. People die of hunger here.”

Alternative media places like Mintpress have been reporting on this for years, but it's a notable event when an establishment mouthpiece like the WashPost covers it.
Of course the WashPost then lies and distorts the situation.
So why doesn't the U.S. feed these people?

“First of all, if we feed them, it will look like we are going to stay there forever, and there may be other options for them, for example in the northeast or the northwest of the country,” he said.
Jeffrey has been negotiating with Russia about providing humanitarian assistance for the camp. He acknowledged that those talks have now stalled, and that U.N. aid convoys (which require the Assad regime’s permission) have stopped as a result.

As for the first point, that sounds suspiciously like Hurricane Katrina "logic" (i.e. if we feed them then they won't leave).

As for needing Assad's permission, that is total BS. Just look at a map. Tanf/Rukban is on the border with Jordan. All that is required is Jordan's permission, but Jordan won't open the border because they say the camp is full of terrorists.

They chose to make camp close to the U.S. military base called Tanf. The United States has a few hundred troops there, training partner forces to fight the Islamic State and holding a strategically crucial location on the road between Tehran and Damascus, near Syria’s borders with Iraq and Jordan.

This is two levels of BS.
The base at Tanf is all about disrupting Tehran's ability to supply it's ally Damascus, not to fight ISIS.
Secondly, ISIS was defeated months ago. Tanf is being used to fight Damascus, not ISIS.

The International Coalition against ISIS has opened the doors for fighters to join its ranks on the Syrian-Iraqi-Jordanian borders.

This comes as tension increases in Syria’s eastern Euphrates amid news that coalition forces have been conducting military maneuvers at the Tanf base, with the participation of Syrian opposition fighters.

The WashPost tries to lay part of the blame on Damascus and Russia, but has to lie in order to do even this.

The U.S., for its part, has both refused the evacuation of refugees from the camp and obstructed aid deliveries on at least two occasions. In February, Russia and Syria opened two humanitarian corridors to Rukban and began delivering much-needed aid to its residents.

Syria’s Permanent Representative to the United Nations, Ambassador Bashar al-Ja’afari, noted in May 2019 that Syria agreed to facilitate the first aid convoy to Rukban earlier this year, but the convoy was ultimately delayed by the United States for 40 days. A second convoy was then delayed for four months. Al-Ja’afari also noted that the U.S., as an occupying power in Syria, is obliged under the Geneva Conventions to provide food, medicine and humanitarian assistance to those under its occupation.
..
Despite the abundance of obstacles they faced, Syria and Russia were ultimately able to evacuate over 14,000 of the camp’s residents to safety. In a joint statement on June 19, representatives of the two countries noted that some of the camp’s residents were forced to pay “militants” between $400 to $1000 in order to leave Rukban.

Yeh, that sounds a bit different. The WashPost explains how these refugees live in terror of the Syrian government.
In fact the reality is very different.

On Tuesday, delegations from Russia, Syria, the UN, and the Rukban refugee camp met to discuss the fate of the camp’s inhabitants after a UN survey found that 95 percent of the camp’s inhabitants wanted to leave the camp, while 83 percent wanted to return to their hometowns in areas of Syria now under Syrian government control.

However, the U.S. military and State Department officials in nearby Jordan rejected an invitation to Tuesday’s meeting. The U.S. military also prohibited a Syrian-Russian delegation from entering the Rukban camp on Tuesday. The delegation had sought to assess conditions in the camp, which have become increasingly desperate according to reports from a variety of outlets, including U.S. government-funded outlets like Voice of America.

The U.S.’ refusal to attend the meeting or allow the delegation passage comes less than a month after the U.S. military blocked the entry of evacuation buses overseen by Russian and Syrian forces that would have allowed refugees to leave the camp.

Right. So it's Syria and Russia that are the "bad guys" here.