I traced missile casings in Syria back to their original sellers, so it’s time for the west to reveal who they sell arms

Readers, a small detective story. Note down this number: MFG BGM-71E-1B. And this number: STOCK NO 1410-01-300-0254. And this code: DAA A01 C-0292. I found all these numerals printed on the side of a spent missile casing lying in the basement of a bombed-out Islamist base in eastern Aleppo last year.