Harrisonburg, VA I will not blame human ingenuity and creativity for the slimy side of human nature. Jill, 59
Saylorsburg, PA Nuclear energy. Unstable, expensive, invisible, and incredibly deadily. Felicia, 34
Somerville, MA New, "improved" weapons. Karen, 20
Marshelltown/Ames, IA The worst invention of the twenty century would be the A-bomb, which has caused so much death and destruction, it did not improve the world any and, for many people, caused a lot of suffering. Ernest, 28
Washington, DC The Rotato. Anthony, 24
Baton Rouge, LA In all fairness it should be pointed out that many bad inventions have led to better ones. That said, did anyone ever really need anatomical pasta? Alias Irrelevante The television. Laura, 35
Lowell, MA The Chia Pet. Need I say more? Nicole
Elk Grove, CA Accepted ignorance. Amy, 23
Baton Rouge, LA (I'm not really an anti-technology guy. . . this is a hard one for me. . .) Maybe Hair Metal. . . . choosing to copy the conventions as they developed in the late 80's. . . (but God how I relished Nirvana and Sound Garden when they pulverized the stuff. . .) mothmc, 35
Pensacola, FL