If it was about 'security' then Israel would have built a VERY secure border with minefields, watchtowers, snipers, dogs etc in 1967, instead Israel MOVED civilians into the area to 'secure' it, building settlements on almost every hilltop then protected them with the IDF. Later a wall was built on SOME but not all of the ceasefire line of 67 to keep terrorists out. (even though they only need to drive a bit to get round it) and cut off farmers from their land. Israel's 'borders' are 'flexible' at the moment and will continue to be 'flexible' for the near future. Hope that helps Chris.