Though the ruling was unanimous, with new Justice Neil Gorsuch not participating, Chief Justice John Roberts and Justices Samuel Alito and Clarence Thomas cautioned that Kennedy's "loose rhetoric" could prevent states from taking any measures to restrict convicted sex offenders on the internet.

“This language is bound to be interpreted by some to mean that the states are largely powerless to restrict even the most dangerous sexual predators from visiting any internet sires, including for example internet dating sites,” Alito wrote for the three justices.

Read more here: http://www.newsobserver.com/news/local/crime/article156928489.html#storylink=cpy