[Bommer]

Photos of the wall in Israel generally show a cleared area of 100meters. That would require a long tunnel.

100 meters is equal to 328 feet. The Mexican drug tunnel was 90 feet down and 2400 feet long! Over 7 times the distance

[GeorgefromGeorgia]

I suppose if Steve McQueen could do it in the great escape, it will happen to Israel. The key will be to patrol the area, so that if terrorists dig a tunnel that they will be discovered before they infiltrate.