Editor's note: This story is a collaboration between the Kyiv Independent and Factcheck Bulgaria. Key findings: * A network of nonprofits runs large-scale fundraising campaigns claiming to support Ukrainian children with cancer, yet less than 1% of funds raised appear to reach the children. * These organizations are mostly based in the U.S. but maintain ties to Israel — reflected in Hebrew names and connections to a namesake organization in Israel. * Fundraisers frequently use false inform