The barrier was created by Little Pete during the meltdown of the power plant. It was created at the exact same time as the First poof occurred. Touching the wall results in an extremely painful burning sensation, but leaves no lasting physical damage. The wall intersects trees and objects, cutting them perfectly in half. It also stoppes the waves in the ocean. Several months into the FAYZ, the United States Military reached the decision to detonate a small nuclear device at the desert-fronting eastern edge of the dome. The explosion rendered the dome transparent.