A government soldier watches as journalists tour the ruins of what was the main battle area in Marawi on the southern island of Mindanao on October 25th, 2017.
When Cody Wilson pioneered 3-D printing for guns, he claimed the technology represented a victory for liberty. In Wilson's new book, it seems "liberty" can also mean "racial purity."
The hippocampus, a structure inside the brain, shrinks after psychological trauma, which hints that a pharmaceutical cure may address post-traumatic stress disorder.