U.S. major airlines roll out more options to avoid staff lay-offs

(Reuters) - The top three U.S. airlines, hit hard by the coronavirus pandemic, are rolling out fresh programs to induce tens of thousands of employees to accept voluntary leave or early retirement in the hope of avoiding widespread furloughs in the fall, company memos show.Around 100,000 employees of American Airlines Group Inc , Delta Air Lines Inc and United Airlines Holdings Inc have already accepted offers for temporary or permanent leaves, the companies have said.But airlines must..