::Harlan, you raise some good points. I think the main issue here is that there is far too much in the way of wholesale quotes in the article.  
 ::I think you have correctly identified that the partial Lyndon Johnson quote is out of context. The full context could be given, but I am going to just remove it, rather than add yet more to the article. 
 ::What you put above does undermine the George Brown quote, but the quote that is in the article doesn't seem to be more of a problem than many of the others, so I'm leaving it. 
 ::I've also noticed the section "Statments by senior American officials...". There doesn't seem to me to me a need for such a section, and many of the quotes are not cited. The quotes also appear to be specifically selected to supportive to the Israeli position, and therefore misrepresent the actual position of the US government. I'm going to be WP:BOLD and delete that whole section.