On the meeting dates, there was a kind of ritual. First would
come the additional West Berlin police and U.S. Army Military Police.
The U.S. Army Ordnance Corps specialists would check the site for bombs--
not an unreasonable precaution in that period.
Media personnel and a handful of curious civilians would converge.
A tiny photographer for the DPA (German Press Agency) would arrive with
his stepladder. Then the lower level diplomats would converge.
The limos came next. Here, the British staff roll through the gates.
Note some of the period touches: the MP sergeant is a veteran of
Vietnam, now in a rather different environment. The "video" cameraman
holds his 16 mm newsreel camera. If something important happens,
his film could be quickly processed and then flown to New York City for
broadcast the next day!