I think this falls under the heading of just because you can, doesn’t mean you should. Google and others looking to do aerial and street mapping of government and private property should get permission before violating national security or individual privacy rights.
“Google has defended the rollout of its Street View mapping service in Germany, where it is the subject of a nationwide debate about online privacy, ahead of a Friday deadline for people wanting to opt out of being pictured on the site. “
also, “The Czech Republic last month banned Google from expanding its panoramic mapping service, saying the product "disproportionately invades citizens' privacy". “