Illegally released KH-11 'early block' product images from the 80s:A newspaper headline when viewed from orbit is on the order of 50-100 milliarcseconds in size. This is barely within the resolution threshold of the Hubble Space Telescope for point-sources, so I'm a bit skeptical about the resolution of a spy satellite.
A current KH-11 block bird: http://www.heavens-above.com/orbit.aspx?satid=37348As NRO telescopes, the optics were designed for looking at objects on Earth to provide up to 3.9 inch resolution from 200 mi. altitude or higher.
Well i saw a film about the elimination of Osama, they claimed, that based on the satellite images they werent 100% sure (of course if one has a double, or more doubles it is really hard even with ground based recon), so i wondered, what scale of resolution could we reach realistically?I doubt we could read a newspaper from space, but, see little practical use for such resolution