PRINCETON – In contrasting decisions last month, a United States Court of Appeals struck down a US Food and Drug Administration requirement that cigarettes be sold in packs with graphic health warnings, while Australia’s highest court upheld a law that goes much further. The Australian law requires not only health warnings and images of the physical damage that smoking causes, but also that the packs themselves be plain, with brand names in small generic type, no logos, and no color other than a drab olive-brown.