we had a rare interview with frank kendall, the man at the pentagon who writes the checks.sle very concerned with what happens happening thousands of miles above them. >> space is becoming a much more contested environment. >> reporter: frank kendall first worked for the "star wars" program, the strategic defense initiative. >> it will take years. >> 5, 4, 3, 2 -- >> reporter: in 25 years such a system may be necessary not just to protect everything we have on the ground, but in space. >> zero, we have liftoff of the united launch alliance. >> there is from the intelligence i've seen, an attempt by some countries to build systems that would allow them to dominate in space, to take out our assets, which are very vulnerable. our assets are in predictable orb bits, what would we do about that? one is to go what we call disaggregated architectures where we take these satellites and break up their function into a number. it makes it harder to attack all of them. another idea that's been talked about is having reserve capabilities that can be launched very quickly in case there's