During a speech to a room packed with Pentagon contractors last August, Mike Griffin, the recently appointed U.S. undersecretary of defense for research and engineering, openly fretted about how little time he had left in office and how much he wanted to get done. At the top of his to-do list is what Griffin described as a "proliferated space sensor layer, possibly based off commercial space developments." He insisted that space sensors must soon be deployed to fill gaps in the current missile defense system that make the United States and its allies vulnerable to Chinese and Russian hypersonic weapons.
展开▼
