Billionaire investor Warren Buffett said the U.S. may need a second economic stimulus package as unemployment is poised to continue rising. “It looks like we’re going to need more medicine, not less,” Buffett said today in a Bloomberg Television interview. “We’re going to have more unemployment. The recovery really hasn’t got going.” Buffett is chairman and chief executive officer of Omaha, Nebraska-based Berkshire Hathaway Inc. President Barack Obama signed a $787 billion stimulus bill in February, which included tax cuts and spending on infrastructure projects intended to save or create 3.5 million jobs. The ... (full story)