Trying hard to hang onto its valuable construction workforce, at least one contractor has launched a new jobsite-wide health and safety measure: deployment of automated external defibrillators (AEDs) to revive sudden heart attack victims at all of its U.S. and Caribbean project sites. Photo: Moss & Associates Moss safety manager Gerard (center) demonstrates defibrillator device operation to other contractor employees. The firm has deployed the devices at U.S. and Caribbean jobsites. While AEDs have found their way into more workplaces and other public spaces, executives of Moss & Associates LLC and other heart-attack prevention professionals believe the Fort Lauderdale-based building