Vibranium Cancer
When a small sub-molecular imperfection was introduced into Captain America's shield, each impact over the years spread to neighboring molecules. It grew until the molecular bonds of the shield were completely broken down, shattering the shield. The shattering effect continued to spread to other vibranium, unconnected to the shield. This created a vibranium "cancer", a shock wave propagating throughout the world. It violently detonated any vibranium it found, from mineral deposits to components of ships or equipment. The shock wave was traveling to the "Great Vibranium Mound" in Wakanda, where the resulting explosion could destroy the world. With the unwitting aid of the villain Klaw, Captain America was able to stop the cancer and restore his shield.
Read more about this topic: Vibranium
Famous quotes containing the word cancer:
“Im beginning to believe that Killer Illiteracy ought to rank near heart disease and cancer as one of the leading causes of death among Americans. What you dont know can indeed hurt you, and so those who can neither read nor write lead miserable lives, like Richard Wrights character, Bigger Thomas, born dead with no past or future.”
—Ishmael Reed (b. 1938)