WASHINGTON: The federal human resources agency at the heart of billionaire Elon Musk's efforts to slash the federal workforce is poised to roll out software to speed layoffs across the US government, two people familiar with the matter told Reuters. The software could turbo-charge the rapid-fire effort to downsize the government at a time when a number of larger federal agencies are preparing to execute plans for mass layoffs of tens of thousands of workers. Some 260,000 government workers