Exhausted air traffic controllers are making more mistakes on the job amid a stretched workforce doing 10-hour workdays and 6-day workweeks, report says
AP Photo/Seth Wenig
<ul><li>The shortage in US air traffic controllers is not new, but it has reached a critical juncture.</li><li>As controllers endure lengthier workweeks, they're becoming increas… [+3549 chars]
