SALMON, Idaho (Reuters) – A federal judge on Wednesday struck down a 2011 Idaho law that banned most abortions after 20 weeks of pregnancy, ruling that the measure is unconstitutional. Idaho is one in all numerous states which have enacted late-time period abortion prohibitions in up to date years in line with controversial clinical research suggesting that a fetus feels ache starting at 20 weeks of gestation. (Reporting through Laura Zuckerman; Editing via Steve Gorman and Eric Walsh)