Fixx -- I think you're missing the crucial point -- In order to get the plane on page one, you have to BEGIN by secretly arranging to get the plane in the air, with all the required permissions and logistic details arranged, without spoiling the Ah-HA! Surprise-factor, complete with half-ass plausable-rationale, in the sky above New York 'next-to' high rise buildings. This is NOT just picture-taking.
And good pont Hugh about the intended audience of this stunt including the cadres of insider officials. After all, what does this suggest? That Obama's people don't have complete situational awareness, their control of the public ideasphere is severely compromised. (Among 'other' messages including those you suggested.)
Re: Power of images -- The notorious photo of Serbian-run 'concentration camp' victims sure comes immediately to mind as a major piece of contrived propaganda during the US/NATOs opportunistic war in Yugoslavia. The 'camp' was just an artifact of carefully-staged photographic manipulation, as a German documentary team fully discovered some months later, after the image had played in the western media, fleshing out the lies about Serbian 'genocide'. This recalls Randolph Hearst's famous dictum to his reporter in Cuba, precipitating the Spanish-American war of 1898:
"in the 1890s, Remington's boss, William Randolph Hearst, sent a cable in reply: "Please remain. You furnish the pictures, I'll furnish the war. ..."
www.smplanet.com/imperialism/remember.html