Tricky enemies

The recent downing of our surveillance drone in Iran reminds me of 1960 when our U-2 spy plane, which also took off from Pakistan, was shot down over the Soviet Union . It was rumored that a Soviet spy magnetized a screw which caused the instruments to give false readings, resulting in the “spy-in-the-sky” descending to a lower altitude that put it in range of the surface-to-air missile that