y you can actually see that the dirt on the boots is from abbottabad , because this was his last operation so that's something we're realld happy to have here in the collection. >> and what is the rifle that's in that display case as well? >> so next to the boots is the rifle that was found right next to the body of osama bin laden. so for all intents and purposes, that was his rifle that we recovered that night. >> robert byer , again, as we go through the museum, the ceiling keeps changing. where o are we when it comes tod the feeling right now? >> so at this juncture in the museum, we are at the end of the chronological history of cia. re and so we get into the digital age, and, as you look up on the ceiling, you'll see that it's now in binary code. so for the digital age, the next frontier of intelligence, we want to make sure we had a bit of the binary code in the digital age in our ceiling as well. >> robert byer, we've talked os about some of the assets that' the cia was able to turn in moscow, but the u.s. has had trader problems as well, correct? >> i think one of the most damagin