http://www.huffingtonpost.com/2011/02/15/south-dakota-abortion-bill_n_823326.html   A bill under consideration in the Mount Rushmore State would make preventing harm to a fetus a "justifiable homicide" in many cases.— By Kate SheppardThis article has been updated.A law under consideration in South Dakota would expand the definition of "justifiable homicide" to include killings that are intended t…