In relation to the post below I found this on my web-search- on the State Department website under the heading of "Classes of Aliens Ineligible to Receive Visas".
Except as otherwise provided in this Act, aliens who are inadmissible under the following paragraphs are ineligible to receive visas and ineligible to be admitted to the United States:
(B) Terrorist activities-
(i) IN GENERAL.-Any alien who-
(V) is a member of a foreign terrorist organization, as designated by the Secretary under section 219, or is inadmissible. An alien who is an officer, official, representative, or spokesman of the Palestine Liberation Organization is considered, for purposes of this Act, to be engaged in a terrorist activity.
So exactly why is, for example, Afif Safieh allowed to head the PLO mission in Washington? The page in question is apparently current and the rules listed are from the Immigration and Nationality Act. Can anyone explain why the rules seem to state that being a PLO official in the USA is considered to be engaging in terrorist activity and yet these people are welcome in Washington?