The fallacy about returning to the pre 67 borders is that in 66 there was no peace, just the opposite, it was the threshold of two upcoming wars , with the second almost succeeding in anhillating Israel. Pre 67 lines per se will not produce peace. Why wasn't there no Palestinian state in 67?
Western-backed Syrian rebels say kill foreign Islamic State (Reuters)
from the article: Shin Bet chief Diskin says Israel in midst of 'new wave of terror'