Ha ha! I forget that your son, I have 2 daughters, and a son, all close in age as your son, that they didn't grow up with the threat that we did. I never tried explaining it to them, and after reading what you wrote, I'm not sure I could do a good job at it either! Lol. I remember in 1983, when the Soviets shot down Korea Air Flight 007, even as kid in 3rd-4th grade, the look of concern on my father's face, worried the hell out of me and I would be looking in the sky for a nuke! Way different times, just think what our parents felt during the Cuban Missle Crisis! Then again, if we took there iPhones and iPads away for a week, they may get the idea? Lol