Check out LBJ's right foot, it doesn't jive with the background and chair very well, looks like it's floating.
B&W photos are notoriously easy to photoshop.
edit: looked at the original, which is much bigger and in a higher resolution... it actually looks legit. This makes sense, as shrinking high-resolution photographs makes contrasting colors not blend very well. Try it sometime. Apparently the gun is a toy gun.
Since we are on the topic, this is one of my all-time favorite gun photoshops:
That's NOT LBJ. The gun looks like a toy to me. I blew the photo up WAAAAAY big, and the only thing that don't look right is JFK's head is not proportional to the rest of his body when compared to other photos of JFK.
JFK's head looks too big for his body when you blow this thing up.
I've just watched back-to-back shows on Discovery about "The Kennedy Detail" and "Secrets of the Secret Service."
The first show is particularly interesting - the presidential protection detail discussing all that went right and wrong with protecting the president and the family. It is truly stunning how much we take for granted now (cue the second show) was simply not considered.