On: Larry Ellison Buys Most of Lanai

[powertower]

I wonder if it would be legal for him to erect a 20' high electric fence (with barbed wire on top) around the lands of the town, so they can't get out on his property.

[jojopotato → powertower]

I would imagine that there is an easement agreement of some sort on the island for residents.

[afterburner → powertower]

Even if it was currently allowed, I am 100% sure that if he tried it there would be outrage and the government would step in and stop it (and changes the laws to disallow it).