US aircraft spotted the Yazidi massacre this week.
But did not act until after the killing.
Displaced Iraqi families from the Yazidi community cross the Iraqi-Syrian border at the Fishkhabur crossing, in northern Iraq, on August 13, 2014. (ABC)
At least 80 men from the Yazidi faith were killed, and scores of women and children abducted, in the village of Kawju (also spelt Kocho) on Friday.
The US watched the killings from the air.
FOX News reported:
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Meanwhile, Barack Obama was out golfing.