I caught wind of a situation in which a man was arrested over something he was doing on his computer because of an employee at the ISP he was using was watching him.

1) Isn't that illegal?
2) How much do ISP's really watch?
3) Do ISP's scan packets for keywords? I imagine it's more than possible.

I just don't see how it could be legal to turn someone in with information you found while invading their privacy... but at the same time it's THEIR network... maybe it's all in the fine print.....