Garance Burke, investigative reporter, San Francisco, for breaking news that the U.S. government is opening a mass facility for migrant children in Texas and considering detaining hundreds more youth at three military bases, adding up to 3,000 beds to the overtaxed system. Acting on a tip from a key source, Burke left other news organizations scrambling, and she had details no one could match, including the number of beds planned for each new facility amid a wave of new arrivals, and context about the two deaths of children inside the system.