DALLAS (AP) - Federal authorities have compromised the rights and safety of some unaccompanied illegal immigrant children they have detained, and inadequate government guidelines are partly to blame, according to a Texas-based research group. Many children appeared before news/" class="autolink">immigration judges without legal representation, some were transported home in shackles or cages, and the medical needs of some were ignored, according to a report released Thursday by the Center for Public Policy Priorities, a nonprofit think tank. "There's no consistent policy. There's nobody who's responsible for these kids, in looking out for their safety," report author Amy Thompson said. "It's...