Darpa's ability to innovate

Noah Shachtman interviews Tony Tether, the head of DARPA in this WIRED blog entry. Here is the quote I like:

People come to me from all over the world, and they look at our track record and what we're doing, and they want to know how they can make an organization like ours. I tell them it's simple. You just have to make sure the people don't stay there very long.