A new Afghan law will allow men to attack their wives, children and sisters without fear of judicial punishment, undoing years of slow progress in tackling violence in a country blighted by so-called "honour" killings, forced marriage and vicious domestic abuse. The small but significant change to Afghanistan's criminal prosecution code bans relatives of an accused person from testifying against them. Most violence against women in Afghanistan is within the family, so the law – passed by parliament but awaiting the signature of the president, Hamid Karzai – will effectively silence victims as well as most potential witnesses to their...