Five law lords rejected the final appeal yesterday by the Pro-Life Alliance against the law that allows experiments with cloned human embryos. The alliance successfully argued in the high court in 2001 that the Human Fertilisation and Embryology Act 1990, which regulates research on embryos, did not cover cloned embryos produced by cell nuclear replacement (CNR), the technique used to produce Dolly the sheep. The ruling, which would have left human cloning totally unregulated, forced the government to rush through legislation banning the use of cloning to produce a baby. It also threatened to wreck the use of early-stage cloned...