ISIS 'celebrate Eid’ by hanging 'US spies' from meat hooks and butcher them 'like sheep' in 'worst ever video'

 Please don't watch as reading is more than sufficient.

WARNING: GRAPHIC CONTENT

Sickening video emerged as Muslims celebrate holy festival Eid al-Adha

Shows prisoners having their throats cut in a slaughter house in Syria

Men are seen hanging upside down from meat hooks in gruesome film

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