Thanks for the info.
I confess I'm not thoroughly up on the situation -- but I remember even the Berlin Wall was inadequate against even unfunded determineds, not to mention American prison escapees...
Put up a minefield and guard towers. This will reduce incursions.
Again, no defense is perfect.
Aye, keep in mind though, how many people would've crossed had there been no wall at all. Also, many people died trying to get across the wall. Although these were people tying to gain freedom, for the purposes of argument try to imagine each one who died as a pontential terrorist bent on murder.
A barrier, I think is a logical place to start. Personally, I would also build one around each Palestinian city, town, village- hell maybe around each house... But that's just me.