(Telecompaper) Sprint is on a drive to raise money, with Masayoshi Son, the CEO of parent Softbank, meeting with Warren Buffet's Berkshire Hathaway and John Malone's Liberty Media in Sun Valley, Idaho, at an annual gathering of CEOs, the Wall Street Journal reported, citing sources familiar with the situation. Talks are at an early stage but sources are saying Berkshire could invest USD 10 billion in Sprint.