Homeland Security Secretary Michael Chertoff said his department will activate his department's new domestic satellite surveillance office in stages, starting as soon as possible with traditional scientific and homeland security activities -- such as tracking hurricane damage, monitoring climate change and creating terrain maps.

I think there is some reasonable debate here about whether people have no expectation of privacy in regard to things that are only visible from above. At the time the Constitution was written, certainly, a hedge afforded some privacy.

[That movie Enemy of the State just gets more and more precient every day. -k]

Administration Set to Use New Spy Program in US