Trivia: When Dwayne Johnson signs to George to calm him down, he says "it's me." The sign he makes on those words is for "Rock," a reference to his stage name "The Rock." (00:15:25)
Continuity mistake: During the conversation Nelson is having with Davis about spending more time with animals than people, they are walking out to Davis' jeep and there is a yellow pole attached to the building on the other side of his jeep. The direction of the sunlight is casting a shadow from it on the wall. Nelson and Davis only talk for about 35 seconds, and then the camera pulls back again as Davis begins to drive off and suddenly the shadow from the pole is much longer. (00:12:10 - 00:12:45)
Continuity mistake: When Davis puts a ziplock bag on his hand and picks up the first canister, you can see brown dirt caked onto the sides of it from the ground. Once the girl asks what it is, it cuts to a different angle showing Davis' face before he says he doesn't know. Suddenly in that shot, the dirt has vanished. (00:17:15)
Continuity mistake: Kate fumbles with a couple of coffee cups on the counter and knocks one over. Another she picks up and sets back down, causing the cup holder on it to fall down to its base. She then picks up a white cup with blue lettering as the TV catches her attention. She takes a drink and turns after setting the white cup down. She goes over to the TV and sits, with the camera now showing a view behind her and the counter is visible. Now the cup she knocked over is sitting back up again and the cup holder on the other is back where it was. Also the clear cup with a small amount of red liquid in it disappears in that shot, only to reappear again in a later shot. (00:20:20)
Continuity mistake: Right after the space station explodes, Dr. Atkins sighs in relief and closes her eyes. She slightly tilts her face down, but still showing her eyes are fully shut. It then cuts to a side angle as the canisters beep before she looks over and her eyes are suddenly open. (00:04:40)
Answer: Likely because the bomber was prepared with the necessary payload, compared to any in Wyoming.