True that Netanyahu is in a bind. The slightest move that looks like peace and he is outed from office by his own supporters. If he does not take the opportunity to deal with Abbas the UN will admit Palestine as a full member of the General Assembly, and thus void the occupation and Israel's claim to spoils of the Six Day War. Netanyahu made a big mistake last fall when he blew away the myth that Israel was working towards an eventual settlement with the Palestinians, someday, some how.
from the article: Netanyahu must present new peace initiative in Washington