In only the third such ruling in the nation, a Sacramento judge has found to be unconstitutional a statute that makes it a federal crime for someone to fail to register as a sex offender and relocate from one state to another. U.S. District Judge Lawrence K. Karlton found that, in enacting the 2006 Sex Offender Registration and Notification Act, "Congress overstepped its authority under the (Constitution's) commerce clause." Karlton made rulings this week in two prosecutions and threw them out, saying SORNA does not meet the U.S. Supreme Court's standard for congressional jurisdiction over interstate commerce. Federal prosecutors immediately...