Who calls them 'filasteens'? I've never seen that word before, although I have seen 'pals', 'palis', 'philistines' and a number of other derogatory terms. Usually spouted by people who'd claim that the use of 'yid' or 'hebe' is evidence of anti-semitism.
Syrian group says Nusra abducts its leader, in blow to U.S. plan (Reuters)
from the article: A Birthright trip for Palestinians, too? Maybe not