Barbara: I can't call him because he's in a coma.
Julia Lindsey Snyder: A coma? Come on, Barbara. Come up with something a little more original. How about - oh, I know. How about a hole opened up, and James fell into the center of the earth?
On 1/12/10, Parker and Liberty have gotten lost hiking while on a family trip to Detroit, and Jack says that the command center is "half a mile away up the side of a mountain." Detroit is in the Great Plains; there are no mountains remotely nearby.