Delta expects revenue over the next three months to be down 90%, with no end of the industry's troubles in sight. "Even as Delta is burning more than $60 million in cash every day, we know we still haven't seen the bottom," said CEO Ed Bastian warned employees that Friday. He said April's schedule will be down "at least 80% smaller than originally planned, with 115,000 flights cancelled." As an example of the drop in traffic he said that on March 28, Delta carried only 38,000 customers, versus its normal late-March Saturday of traffic of 600,000. "I wish I could predict this would end soon, but the reality is we simply don't know how long it will take before the virus is contained and customers are ready to fly again," he said. In a separate filing Berkshire Hathaway disclosed that it sold 18% of its stake in Delta earlier this week, dumping nearly 13m shares for $314m. Berkshire also disclosed it had sold 2.3m shares of Southwest for $74m. That only represented 4% of Berkshire's Southwest holdings though. Berkshire is among the three largest shareholders of all four airlines. <br/>