A US appeals court has declared a 158-year-old federal ban on home distilling unconstitutional, ruling that it is an unnecessary and improper means for Congress to exercise its power to tax. The ban was part of a law passed in 1868 to prevent liquor tax evasion. The court's decision upholds a previous ruling and allows individuals to distill spirits at home for personal consumption or as a hobby. The ruling may have implications for the limits of federal power and individual liberty.