SoftBank's Son hopes 'winged unicorns' can save crumbling tech empire

TOKYO (Reuters) - SoftBank Group Corp CEO Masayoshi Son on Monday pinned his hopes on a small group of "winged unicorns" to save the performance of his $100 billion Vision Fund - although he gave few clues on which ones they would be.Announcing a record annual loss for his tech conglomerate, and an $18 billion shortfall at the Saudi-backed Vision Fund, Son told an earnings presentation on Monday that tech unicorns had plunged into the "valley of the coronavirus".But he said a smaller number of..