I liked them both. This one covers the issues at hand and a solution of sorts. As far as the technology angle goes, I wasn't sure about how far we are technology wise to pull off what they are suggesting until I talked to a Colonel that was on the base at Roswell from 1983-1989. The only thing he could say was that there is technology so far above anything I could imagine. I asked if there was anything he saw in 1989 that came out in the last few years and he said not yet, and that was 20 years ago. So in turn there is so much we can do with technology that it's unfathomable.