Why did the war in Afghanistan hinge on the ability of a teenager to help buy 100 million bullets for the US military? What are international arms dealers actually like? Is the US facilitating war crimes in Yemen while simultaneously transferring weapons to terrorists? And why is so much of the world's corruption wrapped up in gunrunning?  ---- Power Corrupts is written and narrated by Brian Klaas. The executive producer and sound editor is George McDonagh.