This balanced and thoughtful article takes a look at the Illinois lawsuit urging a public school district to shut down its WLANs: The article points out that it's tough to decide right now if Wi-Fi might cause adverse health affects given that research has been done with opposing results and because people haven't been exposed to cellular or Wi-Fi radiation long enough to make a definitive conclusion.
I happen to be working on a story about the Illinois lawsuit and just heard from the lawyer representing the parents who have filed suit against the school district and he said that the parties are in settlement discussions. He couldn't offer any details, of course. I'd like to speculate on what agreement the parties might make but it's hard to imagine. The school might bend and remove the network in an effort to avoid a costly lawsuit. Otherwise, I can't imagine a way that the school could offer the network and offer a way for students to avoid it while receiving the same education as their peers. We shall see.