Doctors Without Borders (MSF) on Monday deplored the fate of thousands of children living in “a giant open air prison” at Syria’s notorious Al-Hol camp. Al-Hol is the largest camp for displaced people who fled after Kurdish-led forces backed by a US-led coalition dislodged Islamic State group fighters from their last scrap of territory in Syria in 2019. In the country’s northeast near Iraq, Al-Hol is overpopulated with more than 50,000 residents including relatives of suspected jihadists, displaced Syrians, and Iraqi refugees. Children make up 64 percent of the Kurdish-run camp’s population, a…