Answers to questions that you don't have. Courtesy the website "US Department of State - Diplomacy in Action".

Out of curiosity, i searched "what is the proper way to greet a high ranking Afghan?" (I have my reasons). This is what i was directed to. I found it interesting despite being totally irrelevant to what i wanted to know. It is copied verbatim except for one paragraph deleted about "Blair house" that is shown by the customary dots
"Q: How do you address the President of the
United States?

A: An envelope is addressed as:

The President

The White House

Washington, D.C. 20500

The salutation would be: Dear Mr. President

Q: How do you address the Secretary of State?

A: When addressing an envelope to the Secretary of State, it
would be:

The Honorable

Hillary Rodham Clinton

Secretary of State

Washington, D.C. 20520

The salutation would be: Dear Madam Secretary

Q: Does a person retain the honorific title
"The Honorable" after leaving the position for which they hold it?

A: Yes, a person who has been in a position that entitled
them to "The Honorable" continues to retain that honorific title even
after he or she leaves that position.

Q: If both the U.S. national anthem and the
national anthem of a foreign country were being played at an event (in the
United States), which one would be played first?

A: Traditionally, as a courtesy, the foreign anthem is played
first.

Q: What is the order of display for the U.S.
flag and a flag of a foreign nation?

A: The two flags should be on separate staffs. Both flags
should be the same size and flown at the same height. The U.S. flag is flown in
the place of honor, which is to the viewer's left.

Q: How is a meeting between a foreign leader
and the President of the United States arranged?

A: The President, working with the White House staff,
schedules meetings with foreign chiefs of state and heads of government. The
country's Ambassador in Washington, D.C. works with the President's National
Security Advisor and his staff to set a date. When the date is set, the Office
of the Chief of Protocol coordinates with the foreign Ambassador to the United
States and the American Embassy overseas to make all of the arrangements from
arrival through departure.

The Office of the Chief of Protocol coordinates
approximately 350 visits per year by foreign leaders, foreign ministers and
other high-ranking foreign dignitaries to Washington, D.C.

Q: Is the United States the only country with
a Chief of Protocol?

A: No. There is a counterpart, usually called the Chief of
Protocol, in almost every country.

Diplomatic protocol is a very historic profession dating
back to the Babylonians who initiated the first recorded exchange of envoys
with other kingdoms. The word "protocol" is the combination of two
Greek words: "Proto," meaning first, and "colon," meaning
glued. The "glued" portion of the word is derived from the Greek
diplomatic tradition, or protocol, requiring that any diplomatic dispatch have
a content summary glued to the outside of its case so that it could be read
first and quickly…

Q: When a chief of state, head of government
or foreign dignitary from another country is in the United States, does the
Secret Service provide all security or is the home country's protection used or
a combination of each?

A: When a foreign chief of state or head of government visits
the United States, the Secret Service provides security for them from entry in
the United States through departure. This includes not only Washington, D.C. but
anywhere in the United States they may travel.

A foreign minister is
provided security by the State Department's Diplomatic Security (DS) Service.
DS may also provide security for foreign dignitaries who are not foreign
ministers. For example, Prince Charles and his wife Camilla, the
Duchess of Cornwall, were provided security by DS during their visit to the
United States.

Q: What is the process for accrediting a new
Ambassador to the United States?

A: A government must
request agrement and await approval for an individual to be accepted as
Ambassador to the United States. Agrement often is requested in the form of a
diplomatic note from the Embassy in Washington to the Department of State or
from the Ministry of Foreign Affairs to an American Embassy abroad. After
agrement is approved, the local embassy in Washington should be in touch with
the Office of Protocol Diplomatic Affairs Division regarding the arrival of the
new Ambassador in Washington.

The Embassy should submit the Form DS-2008 (Notification
of Termination of Diplomatic, Consular, or Foreign Government Employment) for
the previous Ambassador. After the new Ambassador has arrived in Washington
with the necessary documents, the Office of Protocol will arrange for him/her
to present copies of credentials to the Secretary of State or her designee. The
Embassy should submit the Form DS-2003 (Notification of Appointment of Foreign
Diplomatic and Career Consular Officer) for the new Ambassador. The final step
is for the new Ambassador to present credentials to the President at a White
House Credentialing ceremony."http://www.state.gov/s/cpr/what/c18027.htm