I was also there for the evacuation after almost 10 years in country in military and civil service roles. I have always corrected the misnaming of the building as the Embassy. A couple of clarifications: they did broadcast "White Christmas" several times on the American FM station and the Huey in the picture was Air America operated. I don't think the Navy had Huey's; the VNAF did but they weren't officially involved in the evacuation of Americans. The runway at Tan Son Nhut was closed due to enemy shelling on the 27th I believe. We were flying helicopters out of the parking lot of the MACV PX. Also, I don't think we were operating Chinooks during the evacuation; again, the VNAF had some so there were probably a couple in the air but not officially in the evacuation. Finally, the author was correct in his surprise about the lack of shooting and other desperate actions by the Vietnamese we were obviously leaving behind - I recall thousands of people, including many many soldiers in their underwear walking zombie like a daze and drifting silently out of the path of our slow moving bus as we escaped to Tan Son Nhut and the parameter the Marines set up.