Note down this number: MFG BGM-71E-1B. I found [it] printed on the side of a spent missile casing lying in the basement of a bombed-out Islamist base in eastern Aleppo last year. At the top were the words Hughes Aircraft Co", founded in California ... and sold in 1997 to Raytheon, the massive US defence contractor whose profits last year came to $23.35bn. Shareholders include the Bank of America and Deutsche Bank. There were dozens of other used-up identical missile casings in the same underground room in the ruins of eastern Aleppo. These anti-armour missiles ... were not individual items smuggled into Syria. These were shipments, whole batches of weapons that left their point of origin on military aircraft pallets. There are videos of Islamist fighters using the BGM-71E-1B variety in Idlib province two years before I found the casings of other anti-tank missiles in neighbouring Aleppo. There is neither an obligation nor an investigative mechanism on the part of the arms manufacturers to ensure that their infinitely expensive products are not handed over ... to Isis, al-Nusra/al-Qaeda - which was clearly the case in Aleppo - or some other [group] branded by the US State Department itself as a "terrorist organisation". Why don't Nato track all these weapons as they leave Europe and America? Why don't they expose the real end-users of these deadly shipments? The arms manufacturers I spoke to in the Balkans attested that Nato and the US are fully aware of the buyers of all their machine guns and mortars.