Years ago I was group escort on a cruise that stopped in Alexandria, Egypt. We had a private tour pre-arranged through A&K. There was an A&K representative (dressed in a jacket and tie), a local guide, and bus driver (also in jacket and tie) who looked like a young Omar Sharif.
The rep sat in the back, the guide in front. The bus driver had an ear piece and was in constant communication with someone. Finally I realized he was talking to the driver of the military jeep in front of our bus, which was carrying a few security men with rifles. When we got out of the bus at the first stop, we saw there was a second jeep behind the bus, also with armed security. Both jeeps stayed with us the entire time, even during lunch.
A&K was amazing, to put it mildly.