Although the information is presumably known in the USA, this may be a useful compilation of sources in a neutral venue.
AIPAC, Michael Hoenlein, and the hopelessness of the "right of return" for Palestinian refugees [the largest group of refugees in the world]
Last third of video on this site-
http://news.bbc.co.uk/1/hi/programmes/newsnight/3008449.stm
Chris Burford London