In the controlled environment of the United States military, the big room with shiny white paint stands out. The room has computer workstations, overhead projectors and a digital clock that shows the current time in cities around the world. But what captures the attention of many visitors are the walls. They are covered from top to bottom with questions, mathematical notations, pictures and ideas. These markings represent the best thinking of some of the greatest minds in the military. There are precious few places in this building where you can write on a wall, said Albert Bolden. His claim is not too surprising since this area, the Innovation Hub or iHUB, is part of a military base. Bolden is director of innovation at the U.S. Defense Intelligence Agency. People from across the agency can come into this space and figure out how to solve our problems, he said.