Have an image of the sky over San Bernardino taken on August 22nd 2009. What first intrigued me was I saw Dark Rays in the sky. Noticed that phenomenon previously. Basically like a light ray or wide laser ray, but colored darker then the blue sky. Perhaps the remnants of a Laser beam in a frequency not visible to the human eye (for example - infrared or ultraviolet). The dark ray or dark area is just what happens to the atmosphere after the laser light passes through. Seems to expand out over time. They are difficult to see and you have to be at the right angles.
Just looked at the images again, and they have the characteristics of a weapons test. Perhaps the remnants that had blown inland after the test was conducted out over the coast. There is even a weird contrail like pattern nearby the parallel dark rays or possible laser atmospheric pattern rays. The contrail itself is no longer there, but you can see a contrail missile path through the clouds. Probably not a good idea to make it public, since this may be a classified project. In this case though they appeared to have fired the laser multiple times. Unfortunately the dark rays were not captured as dark on the image. They actually appear to be parallel lines or patterns of darker thin lines in the atmosphere.
At the very least they ought to be made aware that details of their testing may indeed persist in the atmosphere.