US fighter pilots from the squadron that killed four Canadian troops in an April ‘friendly-fire’ mishap had complained of exhaustion to their commander shortly before the fatal accident, after they had misidentified a bombing target during a prior mission (over Iraq, where they were flying sorties over the southern no-fly zone as well as missions over Afghanistan). They asked for more rest, noting that official standards for the interval between missions were not being observed. Their concerns were dismissed and they were told to speak to the flight surgeon about amphetamines. Vancouver Sun