When the drinks machine, at the top of the railway station stairs, was initially turned around, you notice that all the bottles are loose and in a giant mess at the bottom of the machine. But when it is straitened up, all the bottles are neatly back in their rows, undisturbed.
It's discovered that Dr. Pynchon used to be in the Army Medical Corps and worked in the SERE (Survive Evade Resist Escape) program. Goren and Eames go to interview one of her former colleges from when she was stationed at Guantanamo Bay, who is a physician that said she was in the Army and only treated Army personnel. However Guantanamo Bay was a Naval base, only U.S. Navy sailors and U.S. Marine Corps soldiers were stationed there. Now sometimes other members of the military and civilian contractors came in on special assignment, but there would not have been any permanently stationed Army personnel at GITMO for her to treat, only sailors and Marines. In fact the doctor that Goren and Eames interview is even wearing a Marine Corps insignia lapel pin.