As an urban legend these photos purport to show a series of road signs along the highway. The accompanying email text claims that the Federal Government is threatening to withhold federal highway funds unless the signs are removed, but the brave state government has refused.
The state involved has been identified as Virginia, Washington, Texas , etc…
Likewise the road or highway changes (although in one case someone forgot to change the road to one that actually runs through the state mentioned).
Examination of the photos (based on identical blemishes) show that there are only two signs, one with Obama holding the sign in his right hand, one holding it in his left. Where-ever these signs are they were up long enough to see the trees in the background go from bare branches to fully leafed.
Anyone know where these signs are (or were)? Let me know. My guess is that they were erected on private property and far enough back from the road to preclude pot shots. If you put these signs near a major road they would be swiss cheese in a week.