The short answer is no. High-resolution imagery comes from low-orbit satellites, which make a complete orbit about every two hours, and image long, narrow strips with each pass, taking days to image the whole planet. There are many of these satellites: commercial, non-military (publicly-accessible) governmental, and governmental (secret), of varying resolutions. These are also supplemented by aerial (plane) imagery.
The net result is that updated-daily imagery exists, but real-time does not. While I'm not privy to the capabilities of the US military, the kind of real-time planet-wide surveillance that movies like Enemy of the State suggest doesn't exist planet-wide.
The highest-resolution images on e.g. Google Maps are from planes, rather than satellites, and aren't imaged anywhere near daily. The only way to have constant, real-time imaging of a fixed location is with a geostationary satellite, which will be so far away (22,000 miles) that the resolution will be low.
Given an unlimited budget, a huge constellation of hundreds or thousands of satellites could come close to real-time planet-wide imaging, but even then, you'd be getting views at different angles as various satellites took images, and you wouldn't ever have a clear directly-overhead view of people walking around.